Britannica Online http://www.britannica.com
Columbia Encyclopedia Columbia Encyclopedia (6th edition unabridged) http://www.bartlbey.com/65/
Encyclopedia.com (Concise Columbia Electronic Encyclopedia 3rd edition) http://www.encyclopedia.com/
Encarta Free Encyclopedia (concise version of Encarta Deluxe with 16,000 articles, atlas and dictionary) http://encarta.msn.com
Encyclopedia Americana (available free to schools and public libraries through the ACCESS PA Power Library project—See your local public library for details on logging in from home)
Encyclopedia Proteus (combined free encyclopedia page) http://rtiess.tripod.com/proteus/encyclopedia.htm
Encyclopedia Smithsonian http://www.si.edu/resource/faq/start.htm
Funk & Wagnalls Online Multimedia Encyclopedia (free registration) http://www.funkandwagnalls.com
Hutchinson Multimedia Encyclopedia Online (requires free registration) http://www.bt-ern.co.uk/helicon/
Information Please Almanacs http://www.infoplease.com
Internet Oracle (extensive list of specialized encyclopedias) http://www.internetoracle.com/encyclop.htm
Knowledge Adventure Encyclopedia (for kids) http://www.letsfindout.com
Resource Central (links to special encyclopedias) http://www.kalama.com/~mariner/qserencyclo.htm
An assortment of special encyclopedias
Artcyclopedia http://www.artcyclopedia.com
Catholic Encyclopedia http://www.knight.org/advent/cathen/cathen.htm
Chemistry Encyclopedia http://www.scimedia.com/chem-ed/scidex.htm
Dr. Koop's Medical Encyclopedia http://www.drkoop.com/conditions/encyclopedia/
E-Conflict World Encyclopedia http://www.emulateme.com/
Encyclopedia Mythica http://www.pantheon.org/mythica/
Encyclopedia of the Orient http://i-cias.com/e.o/index.htm
Encyclopedia of Women's History http://www.teleport.com/~megaines/woindex.htm
Guide to Philosophy on the Internet http://www.earlham.edu/~peters/philinks.htm
International Financial Encyclopedia http://www.euro.net/innovation/Finance_Base/Fin_encyc.html
Internet Encyclopedia of Philosophy http://www.utm.edu/research/iep/
Instrument Encyclopedia (music) http://www.si.umich.edu/CHICO/MHN/enclpdia.html
Spartacus Internet Encyclopedia: British History: 1700-1950 http://www.spartacus.schoolnet.co.uk/industry.html
Stanford Encyclopedia of Philosophy http://plato.stanford.edu