Travlang's Words for Travellers  
   Includes a daily English word and its translation in many other languages.
   http://www.travlang.com/wordofday/

NCES Students' Classroom  
   Provides meaning of a word daily from Webster's dictionary.
   http://nces.ed.gov/nceskids/wordofday.asp

Merriam-Webster's Word of the Day  
   A searchable dictionary and thesaurus. Includes word games, daily word with its meaning, history, usage in sentences, and etymology.
   http://www.m-w.com/cgi-bin/mwwod.pl

Wordsmith.org  
   Features a daily word with its meaning, etymology, usage and pronunciation. Also offers anagrams, acronyms, dictionary and thesaurus by email.
   http://www.wordsmith.org/

Word of the Day  
   Lists the meaning of the word and etymology from three different dictionaries.
   http://ms.unpopular.com/~gac/word/

Oxford English Dictionary : Daily Word  
   Features a daily word with its meaning, pronunciation, spelling, etymology, and date chart.
   http://oed.com/cgi/display/wotd

AmericanLiterature.com  
   A word of the day with its meaning from the American vocabulary, an archive of previous words, and daily quotes.
   http://www.americanliterature.com/VOCAB.HTML

Hebrew - Word of the Day  
   Offers mailing list two or three times per week featuring modern day and biblical Hebrew words. Provides information on subscribing.
   http://www.amerisoftinc.com/hebwordemail.htm

Word of the Day - Spanish Language  
   Contains a word from the Spanish vocabulary each day of the month.
   http://spanish.about.com/blword.htm

German Word of the Day  
   Learn German words with meanings and pronunciations.
   http://www.transparent.com/wotd/today/german_wotd.htm

Mot du Jour - French Word of the Day  
   Provides a new French word emailed daily with pronunciation, example of usage, and related words. Includes archive of previous French words, and subscription information.
   http://french.about.com/library/motdujour/bl_motdujour.htm

Italian Word of the Day  
   Features a new word every day spoken in Italian by a native speaker and a phrase using the word in an example. Includes translation in English.
   http://italian.about.com/library/word/blwordofday1027.htm

Ransford.org Word of the Day  
   Features a mailing list, with daily post of a new word.
   http://www.ransford.org/mailman/listinfo/word-l/

Dictionary.com : Word of the Day  
   Features daily word, meaning, usage and etymology. Also includes a daily word mailing list.
   http://dictionary.reference.com/wordoftheday/

Top Words for GRE  
   Features 10 words per week for GRE exam preparation.
   http://www.graduateshotline.com/gre2.html

Word of The Day by WordThink  
   WordThink's Word of The Day provides unpretentious words that are insightful and persuasive.
   http://www.wordthink.com

VocabularyBuilder  
   Presents the meaning of a different word daily in six languages, including Spanish, French and German. Also provides the service via a mailing list.
   http://www.vocabularybuilder.net/

Vocabulary List  
   A free mailing list which features the meaning and pronounciation of a different word daily.
   http://www.vocabularylist.com/