There are many good online games sites. Examples of good online games sites include popular on the web sources such as Addicting Games, Yahoo! Games, and OMG Pop.
There are many online games for girls, here are some suggestions:GirlsGoGamesClub PenguinOyunlar1Poptropica
all are great
Some of the new cheerleading games that I have heard of recently include:Ships and SailsLovers LeapBooty Bumpand Coach SaysThat is all that I can think of at the moment, sorry, hope that helped(:
tigers
Good online car games, are Need for Speed, Grand Turismo, and Forza.
second life is good
MAG
moderwarfare2
imvu or sims.
Pixie Hollow
Some good, appropriate games online for ten years old girls are generally fashion type games. These games can be found on the website, Girl Games 123.