BoomWriter is a supremely engaging creative writing website that has students reading, writing and assessing content in ways they've never done before!
A good flash-based 'guess the letters' game where players have one minute and three wrong guesses to figure out the words.
http://ictmagic.wikispaces.com/English
A well designed flash spelling challenge. In round one players must identify the correct spelling. In round two they must choice the wrong spelling and gain a bonus if they can spell it correctly.
http://ictmagic.wikispaces.com/English
Print out this personal Thesaurus for younger learners. This PDF has a collection of words in each section, plus space for your children to write their own.
http://ictmagic.wikispaces.com/English