There are many including Runescape, World of Warcraft, and more, although those are the two most popular.
Gangsternation.net
It is a fun online system where kids (and teens) can learn how to make games.
Code of Everand is a great online game that's fun and free. Check it out, just Google "Code of Everand"
Sleuth is a fun game. Not for kids but fun for teens.
heres some games i play or some that r fun Zwinky.com supersecret.com roblox.com freereamls.com wizard101.com
fun ones
There must be some NFL games online, but due to the subject, I doubt they are fun.
miniclip.com has a lot of online games
IMVU or Second Life.
Anything that has to do with dating. Trust me I know what I'm talking about.
Try IMVU or bubbas bar
the sims 2 (more fun with all expansion packs!). sims 3. and sims 3 world adventures!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. !. =)))))))))))))))))))))))))))))))) happy simming!!!.