This is a superb random word generator split into nouns, verbs, adjectives and adverbs. Great for infusing a little magic into creative writing sessions.
http://ictmagic.wikispaces.com/English
This site teaches grammar through a good collection of multiple choice quizzes and games. There is also a junior version of the site for younger learners. Both sites also have downloads for teachers.
http://ictmagic.wikispaces.com/English
A great English game where players shoot the correct word when given the word class, such as noun, verb, adjective etc.
http://ictmagic.wikispaces.com/English