Merriam-Webster Online Collegiate Dictionary- A free,
searchable on-line dictionary and thesaurus, word games, a
word of the day, and many other English language and
vocabulary reference tools and resources.
Wordsmyth Educational
Integrated Dictionary-Thesaurus: online American English
dictionary with an integrated thesaurus. It contains 50,000
headwords, and very precisely defined and hyperlinked
synonyms.
Columbia Encyclopedia Online, 6th ed. 2000 The Columbia
Encyclopedia, the most up-to-date encyclopedia available,
contains over 50,000 article entries, 40,000 bibliographic
citations and over 80,000 cross-reference entries.
Roget?s
II:
New
Thesaurus Online, 1995 edition. Roget?s II contains
35,000 synonyms, in an easy-to-use format as well as
numerous cross-references and succinct word definitions?a
classic for every reference shelf.
Simpson?s
Contemporary Quotations Online provides over 10,000
quotes from over 4000 sources, including 25 categories of
quotes, and 60 sections, ranging from ?love? to
?criminology.?