Dictionaries:

Acronyms & Quotations

American Heritage Dictionary of the English Language

Cambridge Dictionaries Online

Roget's II: The New Thesaurus

Hi-Tech Dictionary

BibMe (an online resource that will automatically generate bibliographies and work cited pages in either MLA or APA format) 

Hi-Tech Dictionary

Altavista Translator

American Sign Language Browser

Columbia World of Quotations

Simpson's Contemporary Quotations

Symbols.com

WWW Acronym & Abbreviation Server