you can find some really cool games on girlsgogames.com, and gamesgames.com, and addictinggames.com
Panda is an online game (virtual world) for kids. Go to pandana.com.Pandana is really fun!! Try it out.
Maybe ROBLOX? its really good game hope i helped :)
Babydow and Babyvalley are two virtual baby online games.
You can create you own school at Second life online virtual Game.
well there is Club Penguin its really good,moshi monsters,binweevils,moviestarplanet
get a virtual snail at ziggysworldgame.webs.com or a horse at howrse.com
go 2 www.google.com and type in virtual hotel games online and chose any of the options
Some virtual games includeClub PenguinRunescapeFantageDownloading games from yahoo games, or shockwaveXivioPolyvore (designing)Pixie Hollow (Disney Fairie game)Wizard101Club Pogo (online mini games)Miniclip (online mini games)
go to horwes.com
IMVU
Ourworld
Yes, Zoo Tycoon games are fun, but an online one called MondoZoo is really fun and to get started, go to http://fizzybiz.mondozoo.com/