Thanks for your response! After doing some research the last two weeks, I have decided to get them a month membership each to Fantage. I have selected a "no chat" option so they takes care of them talking to others. They really enjoy that site, especially my daughter because she can play the games, earn "money" and then buy whatever outfit she likes for her avatar. There's even a game called the "fashion show" where she can dress up with her outfits and costumes! It's a really cute site and safe as well. They just recently won some award from the children's technology review!