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

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.

Infoplease.com, a free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus. Infoplease.com contains facts on all subjects including sports, entertainment, techno...

Publisher of Academic Books, Journals, eBooks, Textbooks, Media, Software, Reference and Online Learning Resources

Free online encyclopedia of philosophy, edited by James Fieser and Bradley Dowden. Hosted by the University of Tennessee at Martin.

Spanning the entire spectrum of life sciences, the Encyclopedia of Life Sciences (eLS) features more than 4,800 specially commissioned and peer-reviewed articles. This alone makes it an essential read for life scientists as well as a valuable resourc...

The most complete library of Marxism with content in over 40 languages and the works of over 400 authors readily accesible by archive, sujbect, or history.

Online Islam Library & books including Multilingual Quran, A Shi

Water: Science and Issues: A-Bi, Bi-Ca, Ce-Cr, Da-En, En-Ge, Ge-Hy, Hy-La, La-Mi, Mi-Oc, Oc-Po, Po-Re, Re-St, St-Ts, and Tw-Z