AllWords.com
Features two modern English dictionaries, multilingual search, and translation. Also features a guide to language sites on the web and a language discussion forum.
http://www.allwords.com/
Indian towns and cities
Indian City is the largest Indian directory and India city resource guide featuring thousands of cities from the India. Infomation and resources of Cities, towns and states In India.
http://www.indiancity.com
Word Assault
Looks up multiple words simultaneously using several databases including Webster's, Easton's, Wordnet, and the Devil's Dictionary.
http://www.wordassault.com/
Word Central
Student dictionary and rhyming dictionary online at Merriam-Webster's website. Daily Buzzword by subscription.
http://www.wordcentral.com/
WordWeb
A free English thesaurus and dictionary for Windows.
http://www.wordweb.co.uk/free