Kids are online now more than ever and they want something safe and fun to do while they're there. Why not let them try out someworlds made just for kids. Parents want their kids to do things that will help their kids use their imagination and maybe even learn something. Kids want to play with their friends and play games. In these kid friendly virtual worlds the kids can do both.
Try them out and see which ones you like best for your kids. Then come back here and tell us what you liked and disliked about each one you tried.