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Blackwell Reference Online

Provides full-text access to reference works in the humanities, social sciences, and business and management.

Spanish Reference Center

Spanish Reference Center is a Spanish language work from the Encyclopædia Britannica and covers the history, culture, and key figures of Spain and Latin America in addition to more general information. The Enciclopedia includes over 47,000 articles, a version Royal Spanish Academy dictionary with 65,000 listings, an atlas and graphics and photographs. Many of the articles were prepared especially for this version. Enciclopedia Universal en Español is based on the earlier Enciclopedia Hispánica.

Gale Virtual Reference Library

Provides access to encyclopedias, alamancs and other specialized reference materials in a wide range of subjects. 

The International Encyclopedia of Social and Behavioral Sciences

The International Encyclopedia of Social and Behavioral Sciences is an attempt to map the history, current theory and methodology of the social and behavioral sciences.  It contains 4,000 articles and over 90,000 biographical entries.

Oxford Reference Online

Oxford Reference Online contains about 100 general and subject dictionaries, encyclopedias and language reference works published by Oxford University Press.

Public Resources

Diccionario de la Lengua Española

The official online dictionary of the Real Academia Española.

Verbix: Romance Languages: Spanish

Verbix is a site devoted to conjugating Spanish verbs.

yourDictionary.com

yourDictionary provides listings of on-line dictionaries, thesauri, and lexicons for dozens of languages.