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| − | All contributions to [[Wikipedia]] must be licensed by the author under the Creative Commons Attribution Share-Alike (CC BY-SA).<ref>[http://en.wikipedia.org/wiki/Wikipedia:Copyrights Wikipedia:Copyrights] accessed February 10 2012</ref> While it guarantees a number of freedoms to reuse and modify the work, this license also imposes obligations that can make this reuse burdensome. Authors always remain free to copy their own work, but cannot copy work that has been edited by others unless they comply fully with the requirements of the license. | + | All contributions to [[Wikipedia]] must be licensed by the author under the GNU Free Documentation License (GFDL).<ref>[http://en.wikipedia.org/wiki/Wikipedia:Copyrights Wikipedia Copyrights] accessed April 7, 2007</ref> While it guarantees a number of freedoms to reuse and modify the work, this license also imposes obligations that can make this reuse burdensome. Authors always remain free to copy their own work, but cannot copy work that has been edited by others unless they comply fully with the requirements of the 3,289-word GFDL. |
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| − | The requirements of the Wikipedia license include:<ref>[http://en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License Wikipedia:Text of Creative Commons Attribution-ShareAlike 3.0 Unported License] accessed February 10 2012</ref> | + | The requirements of the Wikipedia license include:<ref>[http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License Text of the GNU Free Documentation License] accessed April 7, 2007</ref> |
| | * any derivative work must be licensed under the same conditions | | * any derivative work must be licensed under the same conditions |
| | * there must be attribution of principal authors | | * there must be attribution of principal authors |
| | + | * the lengthy text of the GFDL must usually be included |
| | + | * 15 conditions with respect to distributing modified copies |
| | + | |
| | As with [[Conservapedia]]'s terms, no special exceptions are made for teaching or other non-profit uses, but in both cases the [[fair use]] provisions of [[copyright law]] apply. | | As with [[Conservapedia]]'s terms, no special exceptions are made for teaching or other non-profit uses, but in both cases the [[fair use]] provisions of [[copyright law]] apply. |
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| − | [[Conservapedia]]'s copyright conditions are generally less restrictive and easier-to-use, but may be revoked "in very rare instances of self-defense" and do not allow for entire sections of the site to be copied or mirrored, unlike the CC BY-SA. For details, see [[Conservapedia:Copyright]]. | + | [[Conservapedia]]'s copyright conditions are generally less restrictive and easier-to-use, but may be revoked "in very rare instances of self-defense" and do not allow for entire sections of the site to be copied or mirrored, unlike the GFDL. For details, see [[Conservapedia:Copyright]]. |
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| | == References == | | == References == |