- Biographical - over 33,000 biographies
- Dictionary.com - dictionary, thesaurus & encyclopedia reference
- The Free Dictionary - computing, medical, legal, financial & encyclopedic references too
- Internet Lingo - the language of the Internet
- Investor Terms - the biggest, best investing glossary on the web
- Legal Terms & Definitions - free dictionary and explanations of US legal terms
- Law.com Definition Search - search by term or definition, also A-Z
- Measurement Units - units of measurement and conversion factors used around the world
- Military Terms - DOD's dictionary of military terms
- Occupational Titles - index of occupational titles
- OneLook - over 3 million words in almost 600 dictionaries
- Philosophy of Mind - philosophy-neuroscience-psychology
- Pronunciation - from Carnegie Mellon University
- Rap - yes, a dictionary just for Rap
- refdesk.com - many more dictionary links here, like conspiracies?!
- Webster's - the classical collegiate source
- WordSmyth - integrated dictionary and thesaurus
- YourDictionary.com dictionary library, word games, forum, or browse
Thesauri and word tools
- Acronyms - The Internet Acronym Server
- Acronyms at FreeDictionary.com - powered by Acronym Finder, a half million and growing
- Anagram Finder - find life's wisdom in anagrams - and so they say, they never lie!
- Aphorisms - those terse and witty truths, to "feed your wit"
- Cliche Finder - find the perfect cliché
- Computer Terms - abbreviations and acronyms for computer geeks
- The Cook's Thesaurus- bountiful, illustrated, descriptive and includes substitutions
- Freeality - online quotes and phrase search page, search some of these listings too!
- Legislative Indexing Vocabulary - for searching congressional information
- Langenberg - rhymes, crossword puzzle solvers, scrabble unscrambler, synonyms, antonyms, etc
- Voycabulary - convert a web page into lookup links with source of your choice, give it a try!
- WordNet - an online lexical reference system
Grammar and Style