EncyclopediasEncyclopedias

Encyclopedias

Columbia Encyclopedia (hosted by Yahoo)

     "This free online encyclopedia contains over 50,000 entries and more than 84,000 hypertext cross-references covering a wide range of research and reference topics. The Columbia Encyclopedia is one of the most complete and up-to-date electronic encyclopedias ever produced." Includes a browseable index of entries.

Encyclopedia Mythica: Mythology, Folklore and Religion

     World mythology is divided into six geographical regions on this site with each region having many clearly defined subdivisions. The Folklore section contains general folklore and folktales. There are also special interest areas such as a bestiary, legendary heroes, and an image gallery. Searchable and browseable.

Eric Weisstein's World of Science

     Includes extensive encyclopedias of astronomy, chemistry, mathematics, physics, and scientific biography. Entries include definitions, diagrams, formulas, cross-references, and related resources. Searchable, and browsable alphabetically or by topic. Also has a "random entry" feature. The author is a scientist with advanced degrees in physics and planetary science.

PRIME: Platonic Realms Interactive Mathematics Encyclopedia

     The Prime Encyclopedia is a resource for mathematical terms and concepts that is designed to be browsed alphabetically. Searches can be limited by level (elementary or advanced) as well as by specific categories, such as algebra, biography, calculus, computer science, geometry, number theory, statistics, trigonometry, and more. Some definitions link to longer articles.

Stanford Encyclopedia of Philosophy

     "From its inception, the Stanford Encyclopedia of Philosophy was designed so that each entry is maintained and kept up to date by an expert or group of experts in the field. All entries and substantive updates are refereed by the members of a distinguished Editorial Board before they are made public. Consequently, our dynamic reference work maintains academic standards while evolving and adapting in response to new research." Searchable and browseable.