"Structured as an encyclopaedia, but consisting primarily of links to other psychology sites."

A primer to the field of public relations. Features "the positive service and contributions of practitioners" as well as "the theoretical and ethical concerns".

The geology and environment of the last million years.

A collection of scholarly entries on “how to plan and conduct empirical research, including the use of both quantitative and qualitative methods”.

Covers the knowledge from classics, philosophy, literature, literary theory, cultural studies, speech and communications, and discusses basic concepts and themes throughout rhetoric.

Focuses “on the key topics encountered by undergraduates and scholars in urban studies and allied fields."

The coverage from 1670 to 1815 includes Western Europe, North America, Brazil, and Iberian, Russian, Jewish, and Eastern European cultures.

Provides articles on all aspects of the period from the fifth to the fifteenth century.

"Encyclopedia Smithsonian features answers to frequently asked questions about the Smithsonian and links to Smithsonian resources. Covers topics in art, culture, science & techology."

Allows searching for information in over 100 trusted online encyclopedias and dictionaries. An excellent research tool with a wide range of subjects that will be of great use to those investigating a particular subject.