ARTFL Project: Roget's Thesaurus — University of Chicago
http://humanities.uchicago.edu/forms_unrest/ROGET.html

Babel Fish Translation Page — AltaVista
http://babelfish.altavista.com/translate.dyn

Dictionaries — Internet Public Library Reference
http://www.ipl.org/ref/RR/static/ref2000.html

Free Online Dictionary of Computing
http://foldoc.doc.ic.ac.uk/foldoc/index.html

Oxford English Dictionary (Claremont Colleges only)
http://dictionary.oed.com

Merriam-Webster Online Dictionary
http://www.m-w.com/netdict.htm

Merriam-Webster Online Thesaurus
http://www.m-w.com/thesaurus.htm