About Wikipedia    

Wikipedia is managed by a nonprofit parent organization, The Wikimedia Foundation. The site is run by the community of Wikipedians guided by principles including an adherence to a neutral point of view. The articles hosted on this site are released by their authors under the GNU Free Documentation License (or a free license), so the articles are free content and may be reproduced freely under the same license. The license Wikipedia uses grants free access to our content in the same sense as free software is licensed freely. This principle is known as copyleft. That is to say, Wikipedia content can be copied, modified, and redistributed so long as the new version grants the same freedoms to others and acknowledges the authors of the Wikipedia article used (a direct link back to the article satisfies our author credit requirement).