Dictionaries

Cambridge Dictionaries Online - An online resource providing access to entries Cambridge publications: Cambridge International Dictionary of English, Cambridge Learner's Dictionary, Cambridge Dictionary of American English, Cambridge International Dictionary of Idioms, Cambridge International Dictionary of Phrasal Verbs, Cambridge Klett Bilingual Dictionary-French/English and Cambridge Klett Bilingual Dictionary-Spanish/English
Credo Reference (Formerly XReferPlus) Dictionaries* Digital reference library of dictionaries
Merriam-Webster Collegiate Dictionary Online* - From Encyclopedia Britannica Online.
Merriam-Webster Online - Includes a thesaurus, reverse dictionary, rhyming dictionary and more.
Merriam-Webster Online Thesaurus* - From Encyclopedia Britannica Online.

Encyclopedias

Columbia Encyclopedia - Containing nearly 51,000 entries (marshalling six and one-half million words on a vast range of topics), and with more than 80,000 hypertext cross-references, the current Sixth Edition is among the most complete and up-to-date encyclopedia ever produced.
Credo Reference (Formerly XReferPlus) Encyclopedias* Digital reference library of encyclopedias
Encyclopedia Britannica Online* - A comprehensive reference which includes the complete encyclopedia, as well as the Merriam-Webster's Collegiate dictionary and the Britannica yearbook. EB online can be used to search an Internet directory with more than 130,000 links to web sites selected, rated and reviewed.