I think runescape is the most played game for 2008, 'cause the graphics increased and more people around the world started playing!
You have to try this!!!
the best online math game is IXL.
Best game online is pokemon tower defence.
Counter Strick is the best selling game online.
best racing game online is NFS. If you count consolegames which include online play, then Gran Turismo 5 is the best.
The powder game. Best SIMULATION game ever.
Café World on facebook is the best cooking online game
HALO3
People are crazy for Farmvilla online game.
Wii Play was the best selling game of 2008.
Best Online Betting Game in India
FIFA 2008 is the best video game in the world