Do you think the water is empty compared to land in Minecraft or do you not really mind

National Center on Addiction and Substance Abuse at Columbia University.

This year’s report found something new and alarming: Teens who regularly use Facebook and Myspace are much more likely than social network avoiders to drink, smoke and use marijuana.

Maybe a kid has a parent who drinks heavily or uses drugs, or lives in a neighborhood where such things are commonplace.