Encyclopedias

Provides complete text of Encyclopaedia Britannica with search capabilities, related links, and multimedia enhancements. Full text for subscribers only; free trial available.

Offers articles from the Columbia Encyclopedia and Britannica Concise Encyclopedia.

A free encyclopedia with millions of articles contributed collaboratively using Wiki software, in dozens of languages.

Includes the Columbia Encyclopedia, Sixth Edition, dictionaries, and thesauri.

Online dictionary, Columbia Encyclopedia, and almanac reference.

Glossary of terms. Material ranges from undergraduate to research level.

Includes a world atlas, dictionary, thesaurus, multimedia collection, and homework tools.

Originally commissioned and peer reviewed articles across the life sciences. Online encyclopedia requires paid subscription.

Peer-reviewed encyclopedia from Google. Articles are written by named contributors.

Current knowledge of molecular and cellular biology in terms of the information pathways of interacting molecules or genes and links from the gene catalogs produced by genome sequencing projects.

Short articles with links to other web resources about European history from the Roman empire to 1300.

Covers the basics about severe storms with notable examples of Mother Natures ill-tempered handiwork.

Online version of the complete reference work along with dictionary, atlas, links, magazines, historical documents, audio, video, images, and 3D photographs. Requires free temporary registration with option to buy continued access for full articles.

HyperHistory Online navigates through 3,000 years of world history with timelines of civilizations (plus maps), people, and events.

Provides general description of plants, various methods of cultivation, soil and temperature requirements, pruning.