We all have different opinions but ClubPenguin.com is one of the best sites for children.
well it is Fantage Virtual World a cool website for all ages and it is completely safe
Best online virtual world is Second life.
Second Life is best virtual world for teens.
There.com
Try xivio, it's a free 3D virtual world.
The internet.
IMVU
The best virtual world for tweens to play on is www.ourworld.com. it is easy to get started on and entirely FREE! On most virtual worlds you need to purchase a membership but on ourworld you don't. Most of the items are available for ALL members. www.ourworld.com is the best website for a tween virtual world.
the best virtual world where you can do, say, and act anyway like has to be Smallworlds.
ONVERSE!it is the best virtual world sign up here
Animal Jam
the best virtual world for a 9 year old would be: club penguin,Fantage,our world , and panda anda -but club penguin and our world are the best :)-