I ran across another cool online game that I just had to share with you guys: Zuma is the name and shooting balls out of the frog's mouth is the game.
In this game you shoot colored balls at a winding line of balls. Once you line up 3 balls of the same color they disappear (surprising ah?) and the line shortens.
You need to clear up all the balls before they reach golden skull at the end of the line in order to advance to the next level.
Give it a whirl but I gotta warn you that it's pretty addictive so make some time in your calendar for this one...