World Book Online - Encyclopedia for students and adults, with multimedia content.

Access Science - McGraw-Hill Encyclopedia of Science and Technology, plus research updates, biographies, and videos.

Enciclopedia Estudiantil Hallazgos - Una enciclopedia de conocimientos generales.

Gale Encyclopedia of American Law - 14-volume encyclopedia, published in 2011, with entries on legal topics as well as cases, important statutes and documents, legal terms and concepts, and notable persons. Part of the Gale Virtual Reference Library.

Gale Virtual Reference Library - Full-text reference books, including specialized encyclopedias, on topics including business, history, law, philosophy, psychology, religion, and science. Fully searchable and browsable.

Oxford English Dictionary - Word entries include definitions, pronunciation, and history, with quotations that trace usage over time.