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Research-It! Your one-stop reference desk
Contains dictionaries, a thesaurus, a universal translator, library tools, geographical tools, telephone area codes, a link to the CIA Factbook 1998 Edition, Financial tools, Shipping and Mailing Tools and Internet tools.

Bartlett, John. 1901. Familiar Quotations
Contains the text of Bartlett's Familiar Quotations

The Elements of Style, 1918 edition
Contains the online text of The Elements of Style, by William Strunk.

The English Language Reference Page
Contains dictionaries, thesaurus, etc.

Common Errors in English
Contains a must-see page with information about common errors including misspelled words, grammatical errors, and things you have been told are wrong but are standard in English.

Writers' Error Checklist
Contains a list of things to avoid when submitting to a publisher.

Evaluating Web Pages
Contains criteria for evaluating the reliability of information on web pages.