Encyclopedias

The premier encyclopedia on mythology, folklore, and religion.

Spanning the entire spectrum of life sciences, the Encyclopedia of Life Sciences (eLS) features more than 4,800 specially commissioned and peer-reviewed articles. This alone makes it an essential read for life scientists as well as a valuable resource for teaching. The articles within ELS are written by leaders in the field to provide comprehensive and authoritative coverage of this subject area and are aimed at researchers, students and teachers alike.

Over 725 definitions and hundreds of articles on the paranormal, the occult, the supernatural, and the pseudoscientific written from a skeptic's point of view, in defense of reason, science, and critical thinking, and opposing superstition, fraud, deception, and irrationality.

Welcome to Wikipedia.

The world's most extensive Mathermatic help recourse.

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

A free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus. Infoplease.com contains facts on all subjects including sports, entertainment, technology, education, world news, and united states government and history.

Webopedia is an online dictionary and Internet search engine for information technology and computing definitions. Voted Best Technology Website.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and Web sites.

HowStuffWorks explains thousands of topics, from engines to lock-picking to ESP, with video and illustrations so you can learn how everything works.