SET gamehttp://2n1.org/applets/set/
Brainteasers for Kidshttp://kids.niehs.nih.gov/braint.htm
Plexors of the Monthhttp://www.huensd.k12.ca.us/GATE_01/gate/plexers.htm
Analogy Game for Twohttp://www.quia.com/cb/7146.html
Gamequariumhttp://www.gamequarium.com/index2.htm
A Game for the Geography Whiz in you!http://www.eduplace.com/geonet/