Encyclopedias By Subject

• Computers
• History
• Plants
• Religion
• Sexuality

• AARP Health Encyclopedia  - Offers comprehensive health information about medical conditions, symptoms, medications, and medical procedures.
• African Music Encyclopedia  - Resource listing African music, searchable by country or artist including history.
• Cyclepedia  - Encyclopedia for motorcycle enthusiasts features manuals, pictures, technical data, and manufacturer details.
• The Design Encyclopedia  - Collaborative resource that tracks, describes, and explains culture, commerce, politics, media, sports, and brands through design.
• Encyclopedia Mythica  - Encyclopedia of mythology, folklore, and religion, including everything from A-gskw to Zveda Vechanyaya, with plenty in between.
• Encyclopedia of Canadian Theatre  - Database of information about Canadian actors, playwrights, directors, producers, designers, theatre organizations and institutions, composers and plays.
• Encyclopedia of the Nations  - Detailed information about one hundred ninety three countries in the world. Includes information about the United Nations and associated agencies.
• Encyclopedia of the Orient  - Resource which covers all countries and cultures between Mauritania in the west and Iran in the east, Turkey in the north and Sudan in south.
• Internet Encyclopedia of Philosophy  - Listings of people and topics such as metaphysics and epistemology, philosophical traditions, and science, logic, and mathematics.
• Math World  - Online mathematical resource from Wolfram provides links to all mathematical subjects and news.
• Medpedia  - Wiki-style resource with the goal of becoming a repository of up-to-date unbiased medical information, contributed and maintained by health experts around the world, and freely available to everyone.
• Skeptic's Dictionary  - Features definitions, arguments and essays on a variety of topics arranged in categories that include alternative medicine, critical thinking, cryptozoology, ETs and UFOs, frauds and hoaxes, junk science, logic and perception, New Age, paranormal, science and philosophy and supernatural, built largely upon the book by the same name.
• Stanford Encyclopedia of Philosophy  - Articles and entries for philosophical theories, and related bibliographies.
• Symbols.com  - Contains more than 2,500 Western signs, arranged into groups according to their graphic characteristics.
• VirtualSources.com  - Informative articles, annotated bibliographies, maps, photos, products and services from around the world.