Social media vs. social networks
Social Media is a catch-all term for things online that have social elements. Blogs, podcasts, videos (and video sites), Twitter, Facebook and other places. If you can share, comment or interact in any way, it’s social media.
Social Networks are those platforms on which you assemble a network (see what I did there?) of friends, contacts, associates or just about anyone else – Facebook, Twitter, LinkedIn, Google+, even YouTube.
But just because a social network may also be a social media platform, doesn’t mean that all of social media is bound up in social networks.
Thinking of social media as purely Facebook, Twitter and the like is like thinking of newspapers as the only form of traditional media while forgetting radio and television.