This deal has ended.
Shockwave.com again offers a Free 10 Day Trial of their Shockwave Unlimted service, which gives you unlimited play on over 1,000 games. There are no time limits, no interrupting advertisements, and games that will appeal to everyone. Games include Dora the Explorer, Monopoly, various time management games, and puzzle games, to name a few. You will need to register for a new account for the trial to begin, but be sure to cancel before the trial is up, if you don't want to be charged for monthly unlimited access.