At first, I would like to apologize for my bad English. It's not my native language, but I'd like to help you trying to answer this question above.
Social Media is a way to transmitic, or share information with a broad audience. Everyone has the opportunity to create, use and distribute, at least you need to be connect in an internet (ISP-Internet Service Provider).
Meanwhile, social networking is an act of engagement. If we share the same interests or like-mind we together can join on social networking sites and build relationship.
Social Media is a father while Social network is a son (A good son) :)