Here are some links to games you can play for free:
http://games.mygies.com/
http://www.freshwebgames.com
http://www.games2girls.com/
http://www.crazymonkeygames.com/
http://www.arcadew.com/
http://www.ugoplayer.com
http://www.gamegecko.com/
http://www.fadarcade.com
http://www.bestcookinggames.com
http://www.bestcookinggames.com/links.html ---> from this link you can see many games links.
http://www.games.co.id
Most of these are flash games. You can go to other game sites from these links, too.