Word of the Year
- Find out which word Merriam-Webster named the word of the year and click through their list of most popular words.
- http://reference.aol.com/nowyouknow/word-of-the-year

MT Desk
- Word lists by medical speciality including Alternative Medicine, Cardiovascular, Dermatology/Skin, and other areas of care.
- http://www.mtdesk.com/lists.shtml

Vocab Vitamins
- Introduces an uncommon word or phrase each day, along with a definition. Includes archives, and a daily email service.
- http://www.vocabvitamins.com/

International House of Logorrhea
- A online dictionary of obscure and unusual words and obsolete terms to help enhance vocabulary; over 15,500 English words with brief definitions.
- http://phrontistery.info/ihlstart.html

The Phrontistery
- A site for lovers of obscure and unusual words, featuring a dictionary of rare words, word lists of vocabulary on specific topics, essays and discussions on etymology, vocabulary and language usage.
- http://phrontistery.info/

A Word A Day - Today's Word
- Audio clip, definition, and example usage.
- http://wordsmith.org/words/today.html

Dave's Choice Words
- Dave's Choice Words are fun, free vocabulary building exercises.
- http://www.davidfisco.com/dcwindex.php

Heenan's Universal Dictionary
- A collection of weird and wonderful words and their alternate meanings; sources, too, where available.
- http://www.wordskit.com/words/

Commonly Misspelled Words in English
- Select a reference source and click on any word in a list to get a definition, pronunciation or translation of that word to your language. Take a quiz on spelling.
- http://www.esldesk.com/esl-quizzes/misspelled-words/misspelled-words.htm

Vocabulary Activities for Standardized Tests
- Interactive activities on word lists based on themes.
- http://www.syvum.com/squizzes/vocabulary/

English Words from Chinese
- English words which have come into the language from Chinese.
- http://spotlightongames.com/quote/chinesewords.html

Vokabeln.net
- Web-based vocabulary trainer with a multilanguage interface. Features shortcuts for special characters used in ~100 languages.
- http://www.vokabeln.net/

VocabularyMail.com
- A free daily email broadcast of one to three words, their definitions, and explanations and examples of how to use them effectively in your speech and writing.
- http://vocabularymail.com/

Daily Vocabulary Test
- A new short three question multiple choice quiz every day to test your vocabulary knowledge.
- http://www.zdaily.com/vocabulary.htm

WordGenie
- An electronic vocabulary enhancement system that runs as a screen saver on your PC computer.
- http://wordgenie.hypermart.net/

Grandiloquent Dictionary
- A collection of 2000 words which are often omitted from dictionaries, and are in danger of being eliminated from the English language.
- http://www.islandnet.com/~egbird/dict/dict.htm

Exploring Words
- Another advanced English-vocabulary program for long-distance learners of all ages, everywhere.
- http://www.wordexplorations.com/