LANGUAGES AND LINGUISTICS
This link holds over fifty works on language, linguistic theory and structural linguistics. It also has many dictionaries in classic and modern languages as well as foreign. www.eserver.org/langs/
MERRIAM-WEBSTER COLLEGIATE (R) DICTIONARY
This is the one of largest in the world with also a great thesaurus. They also have a great web site with masses of information data.
www.merriam-webster.com
QUINION
This guide provides general advise and a number of links to various other Web sites including a direct link to a Web site on general information about English Usage and Grammar. The site provides examples of citing various online sources and some detailed notes about what to look for when noting resources. www.quinion.com/words/articles/citations.htm
RESEARCH IT
Another of those useful Word sites; includes Dictionaries, Thesaurus; Language Converter; Language identifier; French Conjugator and of course a ubiquitous anagram section. Great for all you crossword/puzzle experts.
www.itools.com/research-it