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

Enciclopedia Estudiantil Hallazgos - Una enciclopedia de conocimientos generales.

Encyclopedia Americana - General encyclopedia with enhanced content. Part of Grolier Online.

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

Grolier Multimedia Encyclopedia - An encyclopedia for students in middle school and high school, with multimedia content.

New Book of Knowledge - Student encyclopedia for early and middle grades, featuring project and educational games. Part of Grolier Online.

New Book of Popular Science - Science encyclopedia for students, with news updates and science experiments. Part of Grolier Online.

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

West's Encyclopedia of American Law - Comprehensive guide to U.S. law and jurisprudence. Part of the Gale Virtual Reference Library.

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