FlyAcesHigh WW2 Combat Game
Interactive Game Get a free 2 week trial of this online WWII combat game. Engage in air, land, or sea combat. For squadrons with other live players. Create your own missions or play historical scenarios. Online gaming action 24 hours a day.

LuckySurf
LuckySurf is the Free Game that's like playing the Lottery every day, except that you can have a chance to win free! "LuckySurf, features a daily chance at winning One Million Dollars in cash and lots of other prizes by matching up to seven of 50 numbers. To date LSF Network's lottery sites, comprised of more than 13 million subscribers, have awarded cash and prizes to millions of winners, including three One Million Dollar winners."

PlayFirst Online Games
"Playfirst creates exciting, addictive & family friendly casual online games that appeal to almost every demographic." They are the maker of the highly addictive game called DinerDash, where you are a waitress trying to build and grow a restaurant franchise by providing your customers great service. They make many other similar games. Many of the games are playable online and nearly all of them can be purchased for use on your computer. They also sell add-ons for some of their popular classics. Check this out for great, simple gaming fun that appeals to the whole family.

Games for free or for cash prizes at WorldWinner
This site has a mix of unique games that can be played for free, or if you set up an account, you can play games for prizes. They specialize in "online skill based games for cash and merchandise prizes, offering free and real money sports, card, strategy, arcade and word games."