Nsf.gov: nsf.gov - National Science Foundation - US National Science Foundation (NSF)

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Answers.com: Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias

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Oxforddictionaries.com: Oxford Dictionaries Online - English Dictionary and Language Reference

Free online English dictionary from Oxford, plus word of the day, resume examples, letter writing, English grammar, and spelling

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Dictionary.cambridge.org: Cambridge Dictionaries Online - Cambridge University Press

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10000birds.com: 10000 Birds: Birding, blogging, conservation, and commentary

Web log of a team of new birders from New York chronicling their efforts to see all the world's species.

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Dictionary.reverso.net: Online dictionary service in English, Spanish, German and other languages by Collins Lexibase

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Yourdictionary.com: Dictionary and Thesaurus - Free Online at Your Dictionary

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Flickr.com: Welcome to Flickr - Photo Sharing

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Merriam-webster.com: Merriam-Webster Online

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