IMVU
Best online virtual world is Second life.
Second Life is best virtual world for teens.
There.com
There.com and Second Life are fun virtual worlds for adults. Onverse can be a fun virtual world for the younger crowd who aren't old enough to sign up.
Try xivio, it's a free 3D virtual world.
Try oz world, age range from 15 to 47.
The internet.
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.
Animal Jam
ONVERSE!it is the best virtual world sign up here
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 :)-