Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos and much more.

A user-authored and edited encyclopedia with over 6 million English entries.

Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library

Digital collection of scientific and cultural texts, images, videos, and sounds.

History, politics, arts, science & more: the Canadian Encyclopedia is your reference on Canada. Articles, timelines; resources for teachers, students; public.

HowStuffWorks has been explaining how things work to curious minds since 1998. Providing factual, unbiased content that's fun to read and makes difficult topics easy to understand.

Our vast collections and the research surrounding them are available to you online on a kaleidoscope of topics—from art to zoology.

the peer-reviewed open-access encyclopedia, where knowledge is curated by communities of experts.

The automotive encyclopedia - is a free comprehensive automotive reference source, where consumers can find information related to autos, cars, boats, trucks, minivans, motorcycles, rv's, suv's and the lemon law.

Encyclopedia Mythica is an internet encyclopedia on mythology, folklore, and religion. Everything from Aaron to Zygius, with thousands of articles in between.

The Stanford Encyclopedia of Philosophy organizes scholars from around the world in philosophy and related disciplines to create and maintain an up-to-date reference work.

A comprehensive suite of e-learning resources designed for all ages and abilities with articles, videos, educator tools, eBooks, research guides and more.

Investopedia is the world's leading source of financial content on the web, ranging from market news to retirement strategies, investing education etc

The Jewish Encyclopedia website provides the complete contents from the 1906 Jewish Encyclopedia.

The World Factbook provides information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 266 world entities.