German Word of the Day - Learn German words with meanings and pronunciations. - http://www.transparent.com/wotd/today/ge_wotd.htm
Vocabulary List - A free mailing list which features the meaning and pronunciation of a different word daily. - http://www.vocabularylist.com/
Word of The Day by WordThink - WordThink's Word of The Day provides unpretentious words that are insightful and persuasive. - http://www.wordthink.com
Dictionary.com : Word of the Day - Features the meaning of a single random word, its pronunciation, etymology and examples of word usage. Includes a daily word mailing list. - http://dictionary.reference.com/wordoftheday/
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/
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
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
Word of the Day - Spanish Language - Contains a word from the Spanish vocabulary each day of the month. - http://spanish.about.com/blword.htm
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
AmericanLiterature.com - Gives the meaning of a single word everyday, and links to an archive of previously listed words. Also includes a daily random quote. - http://www.americanliterature.com/VOCAB.HTML
Oxford English Dictionary : Daily Word - Features a daily word with its meaning, pronunciation, spelling, etymology, and date chart. - http://oed.com/cgi/display/wotd
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/
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
Travlang's Words for Travellers - Includes a daily English word and its translation in many other languages. - http://www.travlang.com/wordofday/