We used google docs. for homework. The value is that more than one person can see it google docs. you can share it with other people.
twiducate is a educational twitter. I posted somthing about me and posted a math realted link from youtube.
I used Build your wild self.com. I would recommend this site if they like animals.
http://www.buildyourwildself.com/
http://bit.ly/cmhurF
