Wikipedia

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Britannica

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and Web sites.

Infoplease

A free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus.

Encyclopedia

Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos.

Everipedia

The new, better version of Wikipedia.

Wikia Uncyclopedia

Uncyclopedia is a community site that anyone can contribute to. Discover, share, do a funky dance, and add your best comedic writing!

Proofwiki

ProofWiki is an online compendium of mathematical proofs! Our goal is the collection, collaboration and classification of mathematical proofs.

Eol

The Encyclopedia of Life is an unprecedented effort to gather scientific knowledge about all animal and plant life where pictures, information, facts, and mo...

Conservapedia

Scholarpedia

Mar 25, 2014 ... Scholarpedia header. Welcome to Scholarpedia .... Retrieved from "http://www.scholarpedia.org/w/index.

Citizendium En