101 Free Games 2009: The Best Free Games on the Web from 1UP.com
Educational Games Online - Free Games from The Problem Site
Juegos educativos en linea.
Free Online Games; two player games and solitaire games online at The Problem Site. Games with educational value, including vocabulary development and strategy planning.
Fun games for students to play that reinforce basic skills
This one seems VERY comprehensive and is possibly a very rich source of free teaching widgets for use on the white board, in starters and plenaries, and mini tasks. LZ
There are a number of free online educational games on this site.
There are a number of free online games of educational value on this site.
Great site providing free online games categorized by subject!