Flash Game Site - http://flashgamesite.com
One of the original game sites. 1500+ games and 2500+ funny videos updated daily. Unique design and content, must visit
Game Capacity - http://www.gamecapacity.com
Extensive collection of free Flash games presented in a well-organized category structure. Available categories include action, puzzles, sports, strategy, shooting, arcade, adventure, and more.
OnlineFlashGames.org - http://www.onlineflashgames.org/
Huge online game collection without registration process.Action, adventure, skill, board, puzzle games and much more..