Wikipedia

Reference.com offers a massive online dictionary, thesaurus, encyclopedia, quote finder, and translator (powered by Google Translate)- all for free. For the Dictionary.com and Thesaurus.com mobile app, go here....

The Encyclopædia Britannica is a general English-language encyclopaedia published by Encyclopædia Britannica, Inc., a privately-held company. The articles in the Britannica are aimed at educated...

Featuring all of the same great features that you know and love from Wikipanion, Wikipanion Plus gives you the features you need to browse Wikipedia all day, and have fun …

Wikipedia is now available on your Windows 7 Phone! With this easy to use app, you can satisfy your thirst for information on-the-go. When you are short on time, bookmark …

Stubia is a mobile encyclopedia that limits each article to 160 characters: this limitation makes each topic easy to understand.

User-editable encyclopedia for fans of anthropomorphic animals. Over 12,000 articles on furry community and culture in eighteen languages.

Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

A wiki-based encyclopedia, the primary difference between Citizendium and Wikipedia being that Citizendium has "subject matter expert" editors, chosen by the community to validate pages and content.