Wikipedia:Example requests for permission
From Wikipedia, the free encyclopedia
- For more on requesting permission, and advice what to ask, see Wikipedia:Requesting copyright permission
This page is intended as boilerplate text for requesting permission to re-use somebody else's content in Wikipedia. To do this, they must re-license it under the GFDL or a GFDL-compatible license. For more, read Wikipedia:copyrights. (Some Creative Commons Licenses (cc-by and cc-sa) may provide greater security of attribution, especially for images. See the CC website and Wikipedia:Image copyright tags for more.)
If you have a letter that has worked in requesting permission, please add it to this page, or work the text that you think was effective into the existing letters. Also, you should send a copy of your request and the response to "permissions-en AT wikimedia DOT org" where it will be permanently archived.
Contents |
[edit] An explanation
The main legal thing that is important to explain to potential contributors: they would be agreeing that their picture (or text) can be used freely by Wikipedia AND its downstream users, and that such use might include commercial use, for which the contributor is not entitled to royalties or compensation. Wikimedia itself is a non-profit organization, and any money raised from the re-use of Wikimedia content would go to furthering our aims—buying new servers to keep the websites running efficiently, producing print runs, making Wikipedia available on CD/DVD for schools and developing countries. However, not all of those who re-use our content are so high-minded.
This means that a contributor's work might appear in print or digital versions of this encyclopedia that are sold in stores. It might appear in WikiReaders, or other specialized subsets of the full text—teacher curriculum packets, publicity brochures, other uses we haven't thought of yet. It will certainly be used by other websites that legally copy our content. Although many of our mirrors and forks don't currently bother with images, that will change over time as they become more sophisticated. Contributed images could even conceivably be legally reused in calendars, coffee mugs or clip-art collections (although the practical requirement to reprint the entire GFDL text with re-used images may limit that somewhat).
It seems about half of the people asked for image contributions say no, uncomfortable about losing creative control, or the idea that someone else might make money from their work, or that there's little we can do to ensure that every downstream user will take the same pains as we do to provide proper GFDL author credit. This is certainly within their legal rights, and is a perfectly reasonable response, especially for those who make a living from their creative work. However, about half of these people have given an enthusiastic yes, happy to be contributing to a genuinely free source of knowledge, and knowing their work will continue to be used and spread.
One appeal that has made a difference to some is that licensing a small number of images to Wikipedia does not put all of their work under this license. Even a professional photographer may be able to contribute just one lovely shot of a building, or a glacier, or a famous figure, without undercutting the saleability of the rest of their work. It may even give their work a greater audience, since those looking for a picture to use for any given project will generally choose free pictures over those that require payment, over time the pictures licensed here are likely to become the "definitive" pictures for any given subject.
[edit] What not to ask permission for
Please don't ask the copyright owner simply for "permission to use the content on Wikipedia." Although this was previously the norm on Wikipedia, and many people would grant such permission, it has since been prohibited by the Wikimedia Foundation.[1][2]
The copyright holder must now release the material under licensing that would make its use permissible by downstream users as well, such as the GFDL or Creative Commons-attribution-share alike. Without this, the content must be deleted, as the owner has not licensed the work with licensing that would make its use permissible in Wikipedia. (See Template:Permission for an example of how images "uploaded with permission" are tagged for deletion and Template:CopyrightedFreeUseProvidedThat for an example of how such images would not be tagged for deletion.)
[edit] Declaration of consent for all enquiries
Due to the large number of ambiguous answers to enquiries concerning a permission of reuse for an image, text or similar (such as "I allow Wikipedia to reuse my photos") it is advisable to attach to your enquiry email a standard declaration of consent (and point to it in the email), which can be returned by the author/copyright owner in the email reply. The precedent below should be amended, as necessary, with the required additional information:
I hereby assert that I am the creator and/or sole owner of the exclusive copyright of WORK [ insert link ].
I agree to publish that work under the free license LICENSE [choose at least one from http://commons.wikimedia.org/wiki/Commons:Copyright_tags ].
I acknowledge that I grant anyone the right to use the work in a commercial product and to modify it according to their needs, provided that they abide by the terms of the license and any other applicable laws.
I am aware that I always retain copyright of my work, and retain the right to be attributed in accordance with the license chosen. Modifications others make to the work will not be attributed to me.
I acknowledge that I cannot withdraw this agreement, and that the content may or may not be kept permanently on a Wikimedia project.
DATE, NAME OF THE COPYRIGHT HOLDER
The WORK, LICENSE and DATE, NAME OF THE COPYRIGHT HOLDER need to be filled out for this to be acceptable. This also helps clarify to the owner what they are agreeing to.
[edit] Example letters used by other editors
[edit] Casual
[edit] Example 1
<AUTHOR | WEBMASTER>,
I really liked your <WHATEVER>! I found it very informative and useful. I'd love to use it in a project I'm involved with called Wikipedia, so I'm seeking your permission. Wikipedia http://www.wikipedia.org is a free encyclopedia that is collaboratively edited by volunteers from around the world.
I'd like to include your materials in this article http://en.wikipedia.org/wiki/<RELEVANT_WIKIPEDIA_PAGE>. To get a sense of the freedom of Wikipedia, you could even edit this right now, even without formally registering.
We can only use your materials if you are willing to grant permission for this under the terms of the GNU Free Documentation License. This means that anyone will have the right to share and, where appropriate, to update your material. You can read this license in full at:
http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GFDL
(NB To keep things simple, we don't use Invariant Sections, Front-Cover Texts, or Back-Cover Texts)
The license expressly protects authors "from being considered responsible for modifications made by others" while ensuring that authors get credit for their work. There is more information on our copyright policy at:
http://en.wikipedia.org/wiki/Wikipedia:Copyrights
If you agree, we will credit you for your work in the resulting article's references section by stating that it was based on your work and is used with your permission, and by providing a web link back to:
<URL OF SOURCE>
Thank you for your time; I look forward to your response.
Kindly,
<WIKIPEDIA AUTHOR>
[edit] Example 2
Dear <AUTHOR | WEBMASTER>:
I am one of thousands of volunteer writers for the free encyclopedia Wikipedia. I am currently working on an article related to <RELEVANT_WIKIPEDIA_PAGE>. Your photo at http://www.<URL OF SOURCE> would look great in the article.
Specifically, I would like your permission to use the images at: http://www.<URL OF SOURCE>
in this article: http://en.wikipedia.org/wiki/<RELEVANT_WIKIPEDIA_PAGE>
One way to give your permission to use the above noted images is to reply to this email with the statement:
I own the copyright to the image mentioned in your email letter and found at http://www.<URL OF SOURCE>
I grant permission to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Thank you for your time.
Kindly, <WIKIPEDIA AUTHOR>
++++++++++++++++++++++++++++++++++++++ Wikipedia's image use policy ++++++++++++++++++++++++++++++++++++++ Wikipedia (http://www.wikipedia.org/) is a free encyclopedia that is collaboratively edited by volunteers from around the world. Our goal is to create a comprehensive knowledge base that may be freely distributed and available at no charge.
Normally we ask permission for material to be used under the terms of the GNU Free Documentation License. This means that although you retain the copyright and authorship of your own work, you are granting permission for all others (not just Wikipedia) to use, copy, and share your materials freely -- and even potentially use them commercially -- so long as they do not try to claim the copyright themselves, nor prevent others from using or copying them freely.
You can read this license in full at: http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GFDL
This license expressly protects creators from being considered responsible for modifications made by others, while ensuring that creators are credited for their work. There is more information on our copyright policy at: http://en.wikipedia.org/wiki/Wikipedia:Copyrights
We choose the GFDL because we consider it the best available tool for ensuring our encyclopedia can remain free for all to use, while providing credit to everyone who donates text and images. This may or may not be compatible with your goals in creating the materials available on your website. Please be assured that if permission is not granted, your materials will not be used at Wikipedia -- we have a very strict policy against copyright violations.
We also accept licensing under other free-content licenses like some Creative Commons licenses - see http://creativecommons.org for this.
With your permission, we will credit you for your work in the image's permanent description page, noting that it is your work and is used with your permission, and we will provide a link back to your website.
We invite your collaboration in writing and editing articles on this subject and any others that might interest you. Please see the following article for more information. http://en.wikipedia.org/wiki/Wikipedia:Welcome,_newcomers ++++++++++++++++++++++++++++++++++++++ End Wikipedia's image use policy ++++++++++++++++++++++++++++++++++++++
[edit] Informal (text)
Dear <AUTHOR | WEBMASTER>,
I wanted to let you know that I enjoyed your <WEBSITE TITLE> at <WEBSITE URL>, which I found while researching for the free online encyclopedia "Wikipedia"; I thought that your information on the subject might be worthy of inclusion in our living and growing document.
Wikipedia (http://www.wikipedia.org) is an encyclopedia that is collaboratively edited by volunteers from around the world. Our goal is to create a comprehensive knowledge base that is not only available at no charge, but is also freely distributed. It is one of many projects of the non-profit Wikimedia Foundation.
I am seeking your permission to use your text either directly, or as a reference for my original writing on the subject. I'd like to include your materials in this article:
http://en.wikipedia.org/wiki/<RELEVANT_WIKIPEDIA_PAGE>. (To get a sense of the freedom of Wikipedia, you yourself can edit this page without registration, right now.)
We can only use your material if you are willing to grant permission for it to be used under terms of the GNU Free Documentation License. This means that although you retain the copyright and authorship of your own work, you are granting permission for all others (not just Wikipedia) to use, copy, and share your materials freely—and even potentially use them commercially—as long as they do not try to claim the copyright themselves, or try to prevent others from using or copying them freely. You can read this license in full at:
http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GFDL. (To keep things simple, we do not use Invariant Sections, Front-Cover Texts, or Back-Cover Texts.)
Please note that your contributions may not remain intact as submitted; this license, and the collaborative nature of our project, also entitles others to edit, alter, and update them at will, i.e., to keep up with new information, or suit the text to a different purpose. However, the license also expressly protects authors "from being considered responsible for modifications made by others" while ensuring that those authors get credit for their work. There is more information on our copyright policy at:
http://en.wikipedia.org/wiki/Wikipedia:Copyrights
We choose the GNU FDL license because it is the best available tool for ensuring that our encyclopedia is and can remain free for all to use, and for providing credit to everyone who donates text and images. It may or may not be compatible with your goals in creating the materials available on your website -- that is your choice. Please be assured that if you do not grant permission, your <copyrighted?/original?> materials will not be used at Wikipedia; we have a very strict policy against copyright violations.
If you do agree to grant permission, we will credit you for your work in the resulting article's references section, by stating it was based on your work and is used with your permission, and by providing a link back to your website.
<You are obviously <very interested/an expert> in your field, and we invite your active collaboration in writing and editing articles on this subject and any others that might be attractive to you. If you are interested, please see:
http://en.wikipedia.org/wiki/Wikipedia:Introduction for more information!>
Thank you for your time; we look forward to your reply.
Kindly,
<WIKIPEDIA AUTHOR>
[edit] Informal (images)
To whom it may concern:
I found your page <page name or URL> while doing research for the free online encyclopedia Wikipedia, and thought your image [regarding <topic>] might be appropriate for inclusion in our articles concerning <subject>.
I am specifically seeking your permission to use this image:
<URLs>
I would like to include your image in these articles:
<Article URLs>
Wikipedia (http://www.wikipedia.org/) is a free encyclopedia that is collaboratively edited by volunteers from around the world. Our goal is to create a comprehensive knowledge base that may be freely distributed and available at no charge.
Normally we ask permission for material to be used under the terms of the GNU Free Documentation License. This means that although you retain the copyright and authorship of your own work, you are granting permission for all others (not just Wikipedia) to use, copy, and share your materials freely -- and even potentially use them commercially -- so long as they do not try to claim the copyright themselves, nor prevent others from using or copying them freely.
You can read this license in full at:
http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GFDL
This license expressly protects creators from being considered responsible for modifications made by others, while ensuring that creators are credited for their work. There is more information on our copyright policy at:
http://en.wikipedia.org/wiki/Wikipedia:Copyrights
We choose the GFDL because we consider it the best available tool for ensuring our encyclopedia can remain free for all to use, while providing credit to everyone who donates text and images. This may or may not be compatible with your goals in creating the materials available on your website. Please be assured that if permission is not granted, your materials will not be used at Wikipedia -- we have a very strict policy against copyright violations.
We also accept licensing of images under other free-content licenses like some Creative Commons licenses - see http://creativecommons.org for this.
With your permission, we will credit you for your work in the image's permanent description page, noting that it is your work and is used with your permission, and we will provide a link back to your website. Please explicitly state under which license you grant permission.
We invite your collaboration in writing and editing articles on this subject and any others that might interest you. Please see the following article for more information.
http://en.wikipedia.org/wiki/Wikipedia:Introduction
Thank you for your time.
Kindly,
<your name>
[edit] Formal
a little help here? Need something very professional, suitable for sending to larger organizations (news orgs, political parties, etc.), perhaps with a signable & mailable form to send back?
[edit] the Epopt's letter to HMSO
A while (or maybe a while and a half) ago, I sent this letter to HMSO. Feel free to fold, spindle, or mutilate it at will. The reply, by the way, was negative: in the opinion of HM Government, Wikipedia may not use Crown Copyright material.
Controller and Queen's Printer
HMSO
St.Clements House
2-16 Colegate
Norwich
NR3 1BQ
Dear Ms. Tullo:
I am an editor of the Wikipedia, a multilingual project to create a complete and accurate open content encyclopedia. The English-language version may be viewed on the Web at http://en.wikipedia.org/. We gather information from many sources, and government Web sites are often particularly useful. As a unique and highly visible project, we freely and publically release our work, that it may benefit mankind. To this end, we punctiliously respect copyright, and have studied the terms of the Crown copyright carefully.
We understand that we may use your material "free of charge in any format or medium provided it is reproduced accurately and not used in a misleading context" provided that "the source of the material [is] identified and the copyright status acknowledged." Our question centers on the relation between the Crown copyright and our own. We maintain copyright over the material we create, but license its use under the GNU Free Documentation License (GFDL), which was designed by the Free Software Foundation (FSF) for free works. You can find the license text at http://www.gnu.org/copyleft/fdl.html. Wikipedia is the largest documentation project to use this license.
The license stipulates that any copy of the material, even if modified, must carry the same license. Consequently, we may not inherit the Crown copyright restrictions. For example, although I might copy a work under the Crown copyright accurately, honestly, and with attribution, under the GFDL a third party must be allowed to create derivative works which may be altered deceptively.
We wish to copy material from the Web sites of Her Majesty's Government and relicense it under the GFDL. We would be grateful if you could provide us with the official position of the Stationery's Office on this matter.
I can be contacted by e-mail at [e-mail address], by telephone at [telephone number] (I am in time zone UTC-7 -- please call in your late afternoon), and by post at:
- [name]
- [postal address]
- [city], [state/province abbreviation] [zip/postal code]
- [country code]
Thank you for your time and consideration.
Sincerely,
<full name>
[edit] Generalized Formal Letter
This is a modification of the Epopt's letter above. Changes have been made to make it less specific to the particular situation that inspired the original letter, and more applicable to other cases.
Name or Title
Address
Dear <NAME>:
I am an editor of Wikipedia, a multilingual project to create a complete and accurate encyclopedia by open editing. We gather information from all types of sources, but the web sites of government bodies, institutes of higher learning, and other non-profit organizations are often particularly useful. The English-language version may be viewed on the Web at http://en.wikipedia.org/. As a unique and highly visible project, we freely and publicly release our work, that it may benefit mankind. To this end, we deeply respect copyright, and are careful to prevent any infringement.
We would like your permission to include resources created by your organization in our encyclopedia. Specifically, we are interested in copying <TITLE>, accessible at <URL>. In order for us to do so, it would be necessary for you to license your work under the GNU Free Documentation License (GFDL), which was designed by the Free Software Foundation (FSF) for free works. You can find the license text at http://www.gnu.org/copyleft/fdl.html.
If you licensed one or more of your documents under this license, you would retain full copyright. However, we would be licensed to distribute the material, as would future users of it. We would distribute your work free of charge. However, future commercial distribution could occur. This is because users of our encyclopedia are authorized by the GFDL to distribute it, or any part of it, for a fee.
The license does stipulate that any copy of the material, even if modified, must carry the same license. This guarantees that if licensed in this manner, no copy of your work could be made proprietary. That means that no one who distributes the work can ever restrict future distribution.
Please notify me if you are interested in licensing <TITLE>, or all of your copyrighted material, under the GFDL. I can be contacted by e-mail at [e-mail address], by telephone at [telephone number] (I am in time zone UTC-7 -- please call (preferred time in time zone of reader)), and by post at:
- [name]
- [postal address]
- [city], [state/province abbreviation] [zip/postal code]
- [country code]
Thank you for your time and consideration.
Sincerely,
<full name>
[edit] Another proposition
This is concise and in British English. Please do comment.
- Dear Sir or Madam:
- I am writing to you on behalf of the Wikipedia project <http://www.wikipedia.org/>, an endeavour to build a fully-fledged multilingual encyclopaedia in an entirely open manner, to ask for permission to use your copyrighted material.
- Your organisation has on its website content which would undoubtedly enhance communication with our target audience; in order to do so, I should like to ask for your authorisation to use such content, namely the [photograph, illustration, etc] located at [URL], under the terms of Wikipedia's licence.
- Wikipedia licenses all its content under the licence developed for purposes of free documentation by the Free Software Foundation, the text of which can be found at <http://www.gnu.org/copyleft/fdl.html>. It should be borne in mind that if you choose to allow Wikipedia to use the stated [photograph, illustration, etc], it will remain copyrighted to you; however, the said licence stipulates that third parties must be permitted to reuse the licensed work so long that they retain the licence of this work and any derivatives from it. Consequently, you may wish to consider carefully whether you are prepared to compromise some of your rights granted to you by copyright law by licensing your work as suggested.
- That said, allow me to reiterate that your material will be used to the noble end of providing a free collection of knowledge for everyone; naturally enough, only if you agree. If that is the case, could you kindly fill in the attached form and post it to [where?]? We shall greatly appreciate it.
- Thank you for your time and consideration.
- I look forward to your reply.
- Yours Faithfully, <name surname>
(alternatively, the salutation can be 'Dear Mr./Mrs./Ms. Surname' if the surname of the person to whom the letter is being sent is known, in which case the complementary closing must be 'Yours Sincerely,' as opposed to 'Yours Faithfully,')
[edit] Neutrality's semi-formal letter for images
Dear (Mr./Mrs./Ms./Dr./Prof./etc.) (----): I am an (editor/administrator) of Wikipedia (wikipedia.org), a multilingual project to create a complete, accurate, and open-content encyclopedia. Volunteers from around the world collaboratively edit Wikipedia, which is one of many projects of the non-profit Wikimedia Foundation (wikimediafoundation.org). We depend on (photography/art/diagrams/charts) to clearly illustrate our articles. I enjoyed your (excellent/informative/colorful) (drawings/images/art/photographs/whatever) at your website (----). However, we can only use your material if you are willing to grant permission for it to be used under terms of the GNU Free Documentation License (GNU-FDL, or GFDL for short). This means that although you retain the copyright and authorship of your own work, you are granting permission for others to use, copy, and share your materials freely, and even potentially use them commercially, so long as they do not try to claim the copyright themselves, or try to prevent others from using or copying them freely (e.g., "share-alike"). You can read this license in full at http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License. Please do note that your contributions may not remain intact as submitted; this license, as well as the collaborative nature of our project, also entitles others to edit, alter, and update them at will, i.e., to keep up with new information, or suit the text to a different purpose. However, the license also expressly protects authors "from being considered responsible for modifications made by others." If you do agree to grant permission for use, we will credit you, state the image was based on your work and is used with your permission, and provide a link back to your website. You are obviously an expert (photographer/graphic artist/videographer/whatever). I hope you will consider accepting our request. Warmest Regards, <real name>
[edit] Semi-formal, Polite, Concise
Comments welcome.
Dear <Mr./Ms./Dr.> <insert last name>: I am one of the many volunteer editors of Wikipedia (wikipedia.org), a Web-based collaboration. I respectfully request your permission to use your excellent <drawing/image/art/photograph/whatever>, <attached, or at your website, <add link here>>, as Wikipedia content. Wikipedia is a multilingual open-content encyclopedia that strives for complete and reliable content. Volunteers from around the world collaboratively create content, but Wikipedia depends upon <article/photography/art/diagram/chart>, such as yours, to clearly illustrate that content. It is to that noble end that I make this request. However, for Wikipedia to use your material, you must agree to the GNU Free Documentation License (often referred to as the GNU-FDL, or GFDL). In essence, the GFDL allows you to retain the copyright and authorship of your work, but grants permission for others to use, copy, and share your materials freely, and even potentially use them commercially, so long as they do not try to claim the copyright themselves, or try to prevent others from using or copying them freely (e.g., "share-alike"). You can read the complete license at "wikipedia.org/wiki/Wikipedia:Text of the GFDL". If you grant permission for use, we will credit you for your work, <and> state that it is used with your permission <<if applicable>, and provide a link back to your website>. I sincerely appreciate your consideration of this matter. Please advise me of your decision <by mail, email, telephone, etc.> and I will gratefully forward it to the Wikimedia Foundation. Thank you, and I hope you will consider accepting this request. Sincerely, <real name>
Steven McCrary 16:13, July 15, 2005 (UTC)
[edit] Formal request for high-quality publicity image
Note: this is intended for use where a free image is available, and thus used, that may be unflattering to the subject.
Dear <Mr./Ms./etc.> <last name>:
I am one of the many volunteer editors of the English Wikipedia (en.wikipedia.org), the free encyclopedia. Wikipedia is among the most-visited sites on the Internet, ranking near the top ten according to the estimates of Alexa Internet (alexa.com), and it is likely that many people visit our article about you (<insert link to article here>') each day. Unfortunately, our article currently makes use of an image of you that might be considered unflattering due to its comparatively low quality.
I am aware that there are many publicity images of you available, but since Wikipedia aims to be reproduceable even for profit and even in nations where generous United States "fair use" provisions in copyright law are inapplicable, we cannot use an image that is not released under a so-called "free license". Essentially, the copyright holder of any image that we use must irrevocably permit anyone else to use it, modify it, or sell it, with the only permissible requirements being that the author be named and that any modifications be released under an identical license. (Exceptions may be made if there is no image available that meets these criteria, but that is not the case here.)
Example licenses that would permit us to use a better-quality image would be: the GNU Free Documentation License (http://www.gnu.org/copyleft/fdl.html), the Creative Commons Attribution-ShareAlike 2.5 license (http://creativecommons.org/licenses/by-sa/2.5/legalcode), or a simple "no rights reserved". You are under no obligation to release any material under such licenses, but I thought that for public-relations purposes, you might want to consider it given Wikipedia's great popularity.
Thank you for your time.
Sincerely, <name>
[edit] Commons 1
Designed to be copied from the wikitext to preserve vertical formatting in a text email message
To whom it may concern:
I found your beautiful website <URL> while doing research for free online image repository Wikimedia Commons (which stores images for the free online encyclopedia Wikipedia, among other projects of the Wikimedia Foundation), and thought your image <URL> (in the highest resolution you have) might be appropriate for inclusion in our article concerning your <figurehead> at <URL>.
I am specifically seeking your permission to use this image: <URL> (in the highest resolution you have)
I would like to include your image in this article: <URL>
Storage of your image would be on Wikimedia Commons http://commons.wikimedia.org , to facilitate use in multiple Wikipedias and other projects.
The Wikimedia Commons is a repository of free content images, sound and other multimedia files. Like Wikipedia, it is a project of the Wikimedia Foundation. It provides a common resource repository to all the various Wikimedia sister projects in any language.
Wikipedia http://www.wikipedia.org/ is a multilingual, web-based, free content encyclopedia project, operated by the Wikimedia Foundation, a non-profit organization, that is collaboratively edited by volunteers from around the world. Our goal is to create a comprehensive knowledge base that may be freely distributed and available at no charge.
Normally we ask permission for images, sound and other multimedia files to be used under the terms of a Creative Commons License. This means that although you retain the copyright and authorship of your own work, you are granting permission for all others (not just Wikipedia) to use, copy, and share your materials freely -- and even potentially use them commercially -- so long as they do not try to claim the copyright themselves, nor prevent others from using or copying them freely.
You can review all of most current Wikimedia Commons and Wikipedia compatible licenses in full at the "cc" links on: http://commons.wikimedia.org/wiki/Commons:Creative_Commons_copyright_tags
Since your web site is in English, I would recommend the license at http://commons.wikimedia.org/wiki/Template:Cc-by-sa-2.5 , which has its deed at http://creativecommons.org/licenses/by-sa/2.5/ .
This license expressly protects creators from being considered responsible for modifications made by others, while ensuring that creators are credited for their work. There is more information on our licensing and copyright policy at: http://commons.wikimedia.org/wiki/Commons:Licensing http://en.wikipedia.org/wiki/Wikipedia:Copyrights
We choose the Creative Commons licensing for images, sound and other multimedia files because we consider it the best available tool for ensuring our projects can remain free for all to use, while providing credit to everyone who donates for images, sound and other multimedia files in a less cumbersome manner than the GNU Free Documentation License (GFDL), which we also accept and was designed by the Free Software Foundation (FSF) for free works and can be found at http://www.gnu.org/copyleft/fdl.html . This may or may not be compatible with your goals in creating the materials available on your website. Please be assured that if permission is not granted, your materials will not be used at Wikimedia Commons -- we have a very strict policy against copyright violations.
With your permission, we will credit you for your work in the image's permanent description page, noting that it is your work and is used with your permission, and we will provide a link back to your website. Please explicitly state under which license you grant permission.
We invite your collaboration in writing and editing articles on this subject and any others that might interest you. Please see the following articles for more information. http://commons.wikimedia.org/wiki/Commons:Welcome http://en.wikipedia.org/wiki/Wikipedia:Introduction
We also invite your permission for use of all of your images, perhaps by changing your legal notice at <URL> according to http://en.wikipedia.org/wiki/Wikipedia:Example_requests_for_permission#Declaration_of_consent_for_all_enquiries
Thank you for your time.
Kindly, <name>
