Are there any free online virtual communities with avatars fun for kids

1.club penguin.com(a virtual world of penguins with loads of missions to go on and loads of games and more)
2.panfu.com(a virtual world don't really know much about it though)
3.girlsgogames.com(loads of fun games for girls)
4.boysgogames.com(loads of fun games for boys)
5.babydow.com(a website where a kid can look after a virtual baby online for free you have to do all its needs)
6.buildabear.com(buildabears are teddy's inside shops(real life)where you can make them but online you don't have to have a real buildabear)
7.everythinggirl.com(a website full of girls games)
8.brittchicks(a virtual world to discover new things that are hidden and customize your character)
9.barbie girls.com(loads of babie games on it)
10.second life(this you have to download :( but it ROCKS its for 12+ its rated the best virtual world)
11.neopets.com(don't know much)
12.juiniorfacebook(its facebook but only for kids)
i think that's it
please like this if i helped
i tried my best
all my love Samantha-Jane xx