Social networking site is an electronic media. What it does do is allow you to stay in touch in ways that was not possible only a decade ago. The likes of facebook, twitter etc have made it so easy for people and groups to communicate and sty in touch all over the world with little or no delay.
Print media did not allow that level of flexibility. One downside of all this Social networking is that it diminishes the physical nature of interacting with people. Everyone you know and communicate with just becomes a facebook, or twitter ID.