About the Wikimedia Foundation
The Wikimedia Foundation actually does not own copyright to most of the content on Wikipedia. This material is generally owned by the volunteers who create content on the site who liberally license it so that it can be used on our sites and elsewhere. In principle, most of the text on our sites is subject to the Creative Commons Attribution-ShareAlike License (CC-By-SA) and can be used free of charge for any purpose. A specific permission for use is not necessary, as long as the license conditions are observed. Some text is also available under the GNU Free Documentation License (GFDL).
Images are identified as being subject to any of several licenses. Therefore, if you want to use an image, it is advisable to check the image information page for the source and/or licensing information. Clicking on the image will lead you to the image information page. Most images are free to use as long as you give the proper credits and follow the terms of the license indicated on the image description page.
Please note: Neither the Wikimedia Foundation nor the contributors of content to Wikimedia sites are able to provide legal advice. We wish we could give you specific feedback on the content you would like to use, but - unless it is one of our logos or rare content generated by our staff - we cannot. It is your responsibility, if you intend to reuse content from Wikimedia sites, to determine how the licenses of the content that we host apply to your intended uses. If in doubt, you may wish to contact an attorney licensed to practice in your jurisdiction who has familiarity with intellectual property law.