Daily, students are logging into their Facebook, Myspace, and countless other social networking sites to catalog their lives.  But these sites aren’t just being seen by friends.

USA Today Reports:

College student Michael Guinn thought the photos he posted of himself dressed in drag would be seen only by friends. But he made a mistake. And when someone showed the photos on Facebook to administrators at John Brown University, a Christian college in Siloam Springs, Ark., it was “the last straw for them,” says Guinn, 22, who is gay.

In the past few months, college, high school and even middle school students across the USA have been suspended or expelled, thrown off athletic teams, passed over for jobs and even arrested based on their online postings. (Related items: Survey: Should a person be expelled or passed over for online postings? | Blog: Share your thoughts: Is the issue free speech or risky behavior?)

Students post pictures of themselves holding cans of beer and bottles of liquor — even when they’re underage. They pose suggestively wearing little — sometimes no — clothing. Some appear to be smoking marijuana in bongs or joints, even holding firearms. They openly write nasty comments about each other or their teachers and coaches online.