Research and Reference

  General

Allwords.com
One Look Dictionary
iTools - Research Tools

  Language

AcronymFinder
Dictionary.com
Foreignword.com
iTools - Language Tools
Miriam-Webster Online
Perdue Online Writing Lab: Grammar
Roget's Thesaurus
Thesaurus.com

  Law

Duhaime's Law Dictionary

  Literature

Bartlett's Quotations

  Medical

CancerWeb Online Medical Dictionary

  Military

Jane's Defence Resources

  Monetary

Investorwords.com
Investopedia.com

  Political

Political Dictionary

  Sports

First Base Sports Glossaries

  Technical

Aerospace Technical Terms
ComputerHope.com