Mi opinion is:
1- Facebook have almost 800 million of active users and it’s growing every daty.
2- More than half log on at least once a day.
3- More than half are out of college.
4- Its fastest growing demographic is those twenty-five years old and older.
5- It offers fantastic online visibility for your brand.
People are talking about you, about your brand, about your business, about you product or services, in real time.
6- The best platform to connect with possible clients, future vendors and  future partners.

Remember this: Facebook is like a coffee shop, a place where people are there to express themselves.