Dictionary of the standard French language used in Quebec. From Université de Sherbrooke.

“This electronic version comprises the text of Webster's Third New International Dictionary, Unabridged, published in 1961, and subsequent updates which take account of current usage.”

A dictionary of ancient biography, covering Greek and Roman history and politics, literature, philosophy, science, and art.

Online Language Dictionaries. Links to Oxford dictionaries and selected verb conjugators.

A large collection of translation dictionaries. Includes links to language learning materials.

A very comprehensive site listing dictionaries specializing in specialized topics.