http://www.theproblemsite.com/
http://www.arkiveeducation.org/games.html
lots of links for learning english games
http://www.shambles.net/pages/learning/englishp/eslgames/
in french and english versions…
http://pagesperso-orange.fr/jeux.lulu/english.htm
http://www.readwritethink.org/materials/construct/index.html
http://readwritethink.org/materials/wordwizard/
http://www.readwritethink.org/materials/in_the_bag/index.html