Well, there's Pirate101, Wizard101, Runescape, Monkey Quest, Furry-Paws, and Club Penguin. I like those.
try neopets.com
Try GaiaOnline.com Its great!
runescape
is there virtual worlds for 11-13 years old
Yes, Actually, you can try Heroup.com which is a really good site for kids
panfu is probably the best site...8 to 14 would be the appropraite age range for this site.
There is Club Penguin and Roblox
Cartoon Network and Nickelodeon have some good sites. Or Neopets, though I'm not sure of the min. age.Well, not really no. There aren't really any specific virtual worlds for 11 years olds. There are some for young children, older children (like 11) teenagers and adults.NeopetsClub Penguin
fantage club penguin poptropica wizard101 movie star planet and one that I created... weworld
imagine world frank town rocks and supersecret.com
YES ... try toontown.com neopets.com buildabearville.com fantage.com
moshi monsters, fantage, spark city world, petpetpark