dictionaries

• American Heritage Dictionary of the English Language - A searchable online version of this respected dictionary. Includes over 90,000 entries feature 10,000 new words and senses, 70,000 audio word pronunciations, 900 full-page color illustrations, language notes and word-root appendixes.
• Diccionarios - A Spanish dictionary.
• Encarta World English Dictionary - This dictionary has been written in the last four years. Its vocabulary has been newly selected from sources showing how modern English is used internationally, in print, on broadcasts, and over the Internet.
• LEO - A German/English dictionary.
• Lexicool.com: Directory of Multilingual and Bilingual Dictionaries - Links to over 2000 translation dictionaries and glossaries.
• Merriam-Webster Online Dictionary - An on-line version of the Mirriam-Webster dictionary, featuring a searchable database for finding pronunciation, etymology, brief definitions, and synonyms of words. Also includes word games, fascinating facts about words and a thesaurus. This is a commercial site which promotes sales of Mirriam-Webster reference books.
• Netlingo - NetLingo is an online dictionary about the Internet. It contains thousands of words and definitions that describe the technology and community of the World Wide Web.
• OneLook Dictionaries - A fast dictionary search tool which allows users to look up words in 350 different dictionaries simultaneously, or work with specific titles. Includes Internet/computer, science, technology, business, sports, religion, acronym, and general dictionaries.
• Roget's II: The New Thesaurus - The online version of the third edition.
• Travlang's Translating Dictionaries - For travelers interested in knowing a bit about foreign languages.
• Webopedia - An online dictionary and search engine for computer and Internet technology.
• YourDictionary.com - "Maintains the most comprehensive and authoritative language portal on the web with more than 2500 dictionaries and grammars in over 300 languages, games that build language skills, and a forum (The Agora) for discussing language issues with the logophile community."