The free encyclopedia will be inaccessible Wednesday as part of a copyright-law protest. But it will still be available via Google's cache.

The Encyclopedia of Life continues to expand at a record pace with the addition of new content and partners. At the start of 2012, EOL provides data on nearly half of all described species, with new content in Spanish, rich information about conservation issues from the International Union for the Conservation of Nature and NatureServe, and more images and videos than ever before.

Free encyclopedia went online in September 2008 with 525 articles.

As expected, the biggest crowdsourced encyclopedia in the world has gone dark for English users. Wikipedia is probably the most prominent site that has decided to black itself out in order to protest the Stop Online Piracy Act and the …

Wikipedia's English language site will blackout on Wednesday, joined by Reddit and Boing Boing, to protest two online anti-piracy acts--SOPA and PIPA-- being pushed by Congress. But where can one go when the world's largest free online encyclopedia goes dark?.

Wikipedia will be going offline on Wednesday to protest the Stop Online Piracy Act (SOPA). Here's where you can go to get your online encyclopedia fix while the site is down.

Wikipedia, the online encyclopedia where users contribute and edit entries, will shut the English version of its website for 24 hours tomorrow to protest proposed U.S. anti-piracy legislation.

WASHINGTON — Wikipedia, the online encyclopedia where users contribute and edit entries, closed access to its English-language site for 24 hours beginning at 12:01 a.m. Wednesday to oppose proposed U.S. anti-piracy legislation.

Wikipedia, the free encyclopedia written by its users, will go dark all day Wednesday to protest two U.S. bills meant to stop illegal sharing of movies and music, but Internet users who want to search for collective articles on everything from ballet to science fiction, there are still ways.

Thirty years ago, many students began their school science projects with a visit to the World Book Encyclopedia, the 22-volume set found in many homes and most school libraries covering topics from A to Z.