I play Connect 4 with my son and thought it would be cool if I could make an online version that he could play with his friends and cousins. I have done a few small Flash projects and wanted to learn more and thought this would be an ideal project. Long story short after some research I finally ended up at PlayerIO.
There is a lot to learn to create a multiplayer game but the PlayerIO API and documentation is great and makes it much easier. The free service is great for development until you get your game popular.
Now I just need to come up with an original game. Here's the link to the game. Click the "Play now" image to start the game.
http://www.szworld.net/c4/main.htm