Moneti
zation in general are basically in the form of effort to advertise affiliate product links, or blog posts with affiliate links where you are aware and share capital for sales.
As Facebook today is a larger social network that exists in the world, the portunities are huge. As I like to say, an internet is a network of people and not computers. This makes any place where you add and assemble people a sensational place for business development and earning opportunities. That's why Facebook is a space that breathes business opportunities.