Just the one, World of Warcraft - I'll list the downsides and the good things below:
Pro's ( Good Things )
Club penguin,Stardoll,panfu,runescape,moshimonsters,habbo,dizzywood,maidmarian,weeworld and binweevils I hope I helped
Stardoll, Chobots, Pandanda, Bellasara, Wizard101, Vmk, Pixie Hollow, Dizzywood, Panfu and Zwinky Cuites. Hope this helps!thanks it did
Here are some, but you have to be a member for most of them: Dizzywood Supersecret ourworld pixie hollow wee world Handiland Sifaka StarDoll Fantage Poptropica
there is club penguin,wizard101,moshi monsters, poptropica, panfu,bin weevils,vizwoz,stardoll,neopets,millsberry,buildabearville,webkinz,dizzywood, ,pandanda,pirates online. hope you like them
fantage woogiworld pixiehollow brabiegirls dizzywood club penguin weeworld whyville mokitown habbohotel habbo imvu stardoll poptropica AWOL Kupika Buildabearville groovygirls panfu pandanda millsberry
These have 3d avatar chatting: habbo ourworld virtualfamilykingdom dizzywood gaia whyville poptropica moshimonster imvu clubcooee zwinky meez
there are lots club penguin neo pets winx club habbo shidonni runescape moshimosters pixie hollow dizzywood franktown panfu pandanda franktownrocks build a bearville fantage tootsville stardoll woogieworld poptropica trollz well that's all i know so hope it helps don't forget there's also free realms.
spotted spinner
club penguin panfu elf world stardoll trollz barbiegirls runscape fantage second life my coke millsberry gaia online mara pets power pets neopets poptropica whyville imvu webkinz planet cazmo
Here are some: Dizzywood Woogiworld Mycoke Secondlife neopets marapets zeapets poptropica habbo gaia runscape marians world whyville stardoll girlsense webkinz You might try google-ing some. I hope i helped!
Stardoll
There are a few websites like club penguin. For example webkinz and dizzywood. Dizzywood is where you go on adventures to earn secret powers and save the day. For girls stardoll and girlsense are great