Free parental control software

http://www.parentalcontrolbar.org/

Many times, when B1 said she needed to check something on internet for school homework, she ended up playing games or even chatting.

I don't mind if she play games etc after she's done with her work, but she could just spent hours playing, with nothing done for her work.

Another similar episode today, so I have no choice but to install this Free Parental Control Software,blocked some of the game sites she frequent.