Simply put, social media connects us. Before social media sites exploded, most people were “confined” to sections of the internet; BBS (bulletin board systems), chatrooms, IRC, and mailing lists .. all of these systems were usually devoted to a specific topic of interest or discussion for the members involved.
When sites like MySpace, Facebook, Twitter entered the scene, with their ease of use, people who normally would not be found doing communal things online started to explore. They started to find the profiles of their friends, family, and co-workers online. They were able to share anything they found online, with all of their friends, all at once! It just took off at an exponential rate, all across the world.
There are also downsides to social media, but that subject is for the next post!