Dictionaries and Encyclopeadias

Dictionaries – English

Cambridge Dictionaries Online – Includes dictionaries of American English, Learner’s and Advanced Learner’s (of English), idioms and phrasal verbs.

Merriam-Webster WWW Dictionary – Includes pronunciation, etymology, date, function, and definitions and will offer alternative words if your entry is misspelled.

Onelook Dictionaries – This search engine provides access to over 900 online general and specialized dictionaries, which can find, define and translate words and acronyms.

Dictionary.com

Thesaurus.com

Reference.com

General Encyclopeadias

Encyclopaedia Britannica Online – Major English language general encyclopedia.

Wikipedia – a free online encyclopedia

Webopedia