Encyclopedias

• 2000 CIA World Factbook - From George Washington's days to today, current, in-depth data on every country in the world
• Artcyclopedia - Artists by Name, Artworks by Title or Art Museums by Name/Place.
• Bartleby.com - Publishes thousands of free online classics of reference, literature and nonfiction.
• Britannica Online - ...information on every topic imaginable - from the origins of the universe to current events and everything in between.
  
• Canadian Encyclopedia, The - The Canadian Encyclopedia is a comprehensive reference work on all subjects relating to Canada. L'encyclopédie canadienne est une ouvre vaste au sujet de Canada.
• Columbia 2001 Encyclopedia - Full Sixth Edition Online
• Encyclopedia.com - Provides users with more than 57,000 frequently updated articles from the Columbia Encyclopedia, Sixth Edition.
• Encyclopedia Mythica -Mythology, Folklore, and Legends.
• Encyclopedia of the Celts - Based on quotations from literature, myth, legend, fiction and history. Compiled and edited by Knud Mariboe©, 1994.
• Encyclopedia Smithsonian - ...subjects from Art to Zoology.
• Encyclopedia of Technology - More than 20,000 IT terms.
• Encyclopedia Titanica - A unique resource for anyone interested in the Titanic. Over 2,100 individual passenger and crew biographies, regularly updated passenger and crew listings...
• EncycloZine - A Concise Illustrated Encyclopedia, and a Compendium of Diversions.
• Internet Encyclopedia of Philosophy - James Fieser, Ph.D., general editor -Bradley Dowden, Ph.D., assistant general editor.
  
• Nolo's Legal Encyclopedia - Plain-English articles on the legal topics that affect you most.
• Regulatory Fish Encyclopedia - US FDA / Center for Food Safety and Applied Nutrition offer images and data.
• Stanford Encyclopedia of Philosophy - The Metaphysics Research Lab Center for the Study of Language and Information.
• The Rudiments of Wisdom Cartoon Encyclopedia - by Tim Hunkin. Thousands of cartoons covering almost everything there is to know!
  
• Wikipedia - A collaborative project to produce a complete encyclopedia from scratch. We started in January 2001 and already have over 12,000 articles.

Special Section

• Art History Resource on the Web
• artiste - The World-Wide Web Virtual Library for Archaeology.
• Bible Word Search Puzzles - Full-sized and junior word search puzzles on Bible topics. Find all the Bible words in the puzzle. The leftover letters reveal the mystery word.
• The Internet Classics Archive - Select from a list of 441 works of classical literature by 59 different authors, including user-driven commentary and "reader's choice" Web sites

Library

• ICDL-International Childrens Digital Library - English and in Español, or Монгол
• Internet Public Library - The IPL has an online volunteer staff dedicated to answering reference questions for visitors of the IPL.
• National Library of Medicine - National Institutes of Health.
• The British Library - The world's knowledge.
• The Library of Congress - The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress.
• The Library of Congress Online Catalogs - The Library of Congress collections include over 110 million items in a variety of formats and languages.
• The MSDN Library - An essential resource for developers using Microsoft tools, products, and technologies.
  
• The National Library of Australia -Take an information journey through centuries, continents and civilisations...
• The New York Public Library - Offers a continuing education, to each of us, at every level of learning.

Thesaurus

• CERES Thesaurus Effort - CERES and National Biological Information Infrastructure (NBII) Biological Resources Division (BRD) are collaborating on the development of an Integrated Environmental Thesaurus...
• Cook's Thesaurus -  A cooking encyclopedia that covers thousands of ingredients and kitchen tools. 
• Encyclopedia of BabyNames. Thesaurus for Babynames. 10,000+ Babynames with meanings, thesaurus and a searchable database...
• Getty Thesaurus of Geographic Names (TGN) - A structured vocabulary of geographic names for indexing art and architecture.
• LC Thesaurus for Graphic Materials I: Subject Terms (TGM I)
• Maths Thesaurus
• The Astronomy Thesaurus - Compiled by Robyn M. Shobbrook (AAO) & Robert R. Shobbrook (Syd. Uni.).
• The Australian Pictorial Thesaurus (APT) -  A collection of topic terms for indexing Australian images. 
• Thesaurus Musicarum Latinarum (TML) -  An evolving database of the entire corpus of Latin music theory written during the Middle Ages and the Renaissance.
• UNESCO Thesaurus - A controlled vocabulary developed by the United Nations Educational, Scientific and Cultural Organisation.
• Webopaedia - Search engine for computer and Internet technology.