- Encyclopedia aggregator and one-stop-shop for academic information


Columbia Encyclopedia - Columbia's online encyclopedia offers 57,000 entries

Visit - Longest Running Tech Encyclopedia Featuring 20,000 topics and 2,500 images


CREDO Reference - Background Information to Start Your Research

Visit - The World’s #1 Online Encyclopedia


Encyclopedia Brittanica -The world standard in knowledge since 1768

Visit Encyclopedia Brittanica

Encyclopedia of Life - Database of scientific information on and photographs of known species

Visit Encyclopedia of Life - Discover inspiring cultural heritage from European museums, galleries, libraries and archives - Digital collection of scientific and cultural texts, images, videos, and sounds

Visit Europeana

How Stuff Works - Source for easy-to-understand explanations of how things work

Visit How Stuff Works

Internet Encyclopedia of Philosophy

Visit Internet Encyclopedia of Philosophy

MacTutor History of Mathematics Archive

Visit MacTutor History of Mathematics Archive

Mathematicians of the Seventeenth and Eighteenth Centuries

Visit Mathematicians of the Seventeenth and Eighteenth Centuries

MedlinePlus Medical Encyclopedia (By ADAM) - Diseases, symptoms, injuries, and more with photographs and illustrations

Visit MedLine Plus

New Advent's Catholic Encyclopedia - 10,000 articles on Catholic history, interests, and doctrine

Visit The Catholic Encyclopedia - Encylopedia Mythica Premier encyclopedia covering mythology, folklore, and religion

Visit Encylopedia Mythica - Encyclopedia aggregator. Sources include Columbia Encyclopedia and Wikipedia


Scholarpedia - Peer-reviewed open-access encyclopedia written by scholars from around the world

Visit Scholarpedia

Smithsonian - Online resources from the Smithsonian Institution

Visit Smithsonian

Springer - Encyclopedia of Mathematics

Visit Springer's Encyclopedia of Mathematics

Stanford Encyclopedia of Philosophy - Hundreds of refereed encyclopedia entries

Visit Stanford Encyclopedia of Philosophy - 2,500 western signs and ideograms grouped by graphic characteristics


Who2 - Biographies - Encyclopedia of more than 3,000 famous people and fictional characters

Visit Who2

World Book - Traditional encyclopedia in print since 1917. Subscription required

Visit World Book

Wikipedia Encyclopedia List - Many more encyclopedias!!!

Visit Wikipedia's List