I was watching Teen Mom 2 (I know, it's such a lame show but I love it!), and there is a girl named Kailyn that was definitely affected by social media. She is currently living with her ex-boyfriend Joe, their child, and Joe's parents. She begins dating a guy named Jordan, and decides to change her relationship status on facebook to "in a relationship." When she gets home, her ex-boyfriend and his parents completely attack her for dating someone else, and tell her that she can't live there if she is going to date another guy. So in this situation, she was affected negatively by social media.
Teen Mom 2. "So Much To Lose." Episode 2. Web 27 Jan, 2011.