Encyclopedias

General Encyclopedias 

  1. Encyclopedia Britannica Online

Juvenile Encyclopedias

  1. Encarta Encyclopedia (Microsoft)
  2. Encyclopedia Smithsonian--Answers to frequently asked questions about the Smithsonian and links to Smithsonian resources.
  3. Encyclopedia.com--Articles from the Concise Columbia Electronic Encyclopedia, Third Edition. Also includes links to related online articles.

 Subject-specific Encyclopedias

  1. A.D.A.M. Health Illustrated Encyclopedia (MEDLINEplus)
  2. Catholic Encyclopedia, 1913 Edition
  3. Encyclopedia Mythica--An encyclopedia on mythology, folklore, and legend. Non-refereed articles.
  4. Encyclopedia of the Orient--An encyclopedia of the Middle East and North Africa. Non-refereed articles. Three main writers but numerous people also contribute articles.
  5. Encyclopedia Smithsonian--Answers to frequently asked questions about the Smithsonian and links to Smithsonian resources.
  6. Eric Weisstein's world of science--Weisstein draws on his wide-ranging expertise to construct an encyclopedia that provides coverage of selected topics in astronomy, physics, mathematics, chemistry and scientific biography.
  7. How Stuff Works (Marshall Brain)
  8. International Encyclopedia of Sexuality (Archive of Sexology)--Patterns and trends in sexual attitudes and behavior in 32 countries around the world. Online version of the multivolume work.
  9. ORB Encyclopedia: A Topical Index--Chronological and geographical index of essays, bibliographies, images, documents, and links about the Middle Ages. Articles are written by scholars and are peer reviewed.
  10. Perseus Encyclopedia (Perseus Project, Tufts University)--Encyclopedia of the Archaic and Classical Greek world.
  11. Stanford Encyclopedia of Philosophy (Stanford University)
  12. SYMBOLS.com: Encyclopedia of Western Signs and Ideograms--Online version of Carl G Liungman's book Thought Signs: The Semiotics of Symbols--Western Ideograms (1995).