mmkSocial networking sites like Facebook and MySpace allow you to find and connect with just about anyone, from a coworker in a neighboring cube to the girl who played Emily in your high school production of "Our Town" thirty years ago. Browsing these sites can make you feel connected to a larger community, but such easy, casual connection in an electronic environment can also have its downside.

A False Sense of Connection
According to Cornell University's Steven Strogatz, social media sites can make it more difficult for us to distinguish between the meaningful relationships we foster in the real world, and the numerous casual relationships formed through social media. By focusing so much of our time and psychic energy on these less meaningful relationships, our most important connections, he fears, will weaken.

Cyber-bullying
The immediacy provided by social media is available to predators as well as friends. Kids especially are vulnerable to the practice of cyber-bullying in which the perpetrators, anonymously or even posing as people their victims trust, terrorize individuals in front of their peers. The devastation of these online attacks can leave deep mental scars. In several well-publicized cases, victims have even been driven to suicide. The anonymity afforded online can bring out dark impulses that might otherwise be suppressed. Cyber-bullying has spread widely among youth, with 42% reporting that they have been victims, according to a 2010 CBS News report.

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Decreased Productivity
While many businesses use social networking sites to find and communicate with clients, the sites can also prove a great distraction to employees who may show more interest in what their friends are posting than in their work tasks. Wired.com posted two studies which