STUDENT WARNING - never put in your personal details (such as name or address) in order to play a game.
Cartoon Network - http://www.cartoonnetwork.com/
Crayola - http://www.crayola.com/
Disney - http://home.disney.com.au/
Disney TV - http://home.disney.com.au/tv/
Girls Go Games - http://www.girlsgogames.com/
Google - http://www.google.com.au/
Lego Games - http://play.lego.com/en-US/Games/default.aspx
Mathletics - http://www.mathletics.com.au/
Miniclip - http://www.miniclip.com/games/en/
NASA Kids' Club - http://www.nasa.gov/audience/forkids/kidsclub/flash/index.html
National Geographic Kids - http://kids.nationalgeographic.com/
Nick - http://www.nick.com/
Nitrome - http://www.nitrome.com/
Orisinal Mouse Games - http://www.ferryhalim.com/orisinal/
Poptropica - http://www.poptropica.com/
Pokemon - http://www.pokemon.com/
Polly Pocket - http://intl.pollypocket.com/
Zac Power - http://www.zacpower.com/home/default.asp