As said above, there are a lot of games on there to play. A word of advice, though. Just choose one or two games to enjoy, join the game forum to invite neighbors, and don't let the game run your life. I did that with FarmVille and I was also playing several other games at the same time. I couldn't find time to get away from my computer because the games needed constant attention! I finally had enough and began deleting myself out of the games until I was just playing FarmVille. When I had reached a high level and bought all I wanted to buy, I deleted myself from that game, too.
Now I play YoVille and Happy Pets because I can play those everyday or just one day a week. I am not stuck at my computer for hours at a time trying to keep everything up-to-date and I just go at my own pace. They are also relaxing for me and I only use them as time killers or "rewards" to myself when I get my housework done.
at 9:24 AM on Jun. 7, 2010