Current. A historical dictionary. The accepted authority on the evolution of the English language over the last millennium. It is a guide to the meaning, history, and pronunciation of over half a million words, both present and past. Traces the usage of words.
Updated regularly. Fulltext. Includes the Encyclopaedia Britannica, as well as Merriam-Webster's Collegiate Dictionary and Thesaurus, Notable Quotations, and Gateway to the Classics, which provides PDF versions of selected classic texts.