
Teach and model kindness and good manners online. Because children are great mimics, limit your own media use. In fact, you'll be more available for and connected with your children if you're interacting, hugging and playing with them rather than simply staring at a screen.
Personal Note: Healthychidren.org has a wonderful series of advice for parents. I have saved each of them and have made them available at this link.
http://www.livebinders.com/play/play/2253809?tabid=0faecca8-d100-2175-3060-1cbcbf671dc0