There are many active Facebook communities.
I myself started some communities.
Management and Industrial Engineering - Effectiveness and Efficiency
The community is still growing. It has 377 members on 14 February.
One more community that I am administering is:
Telugu Film Chamber - T F C
My entry today in the Hiranandani Estate Community.
Completed 10 Km walk today in Estate Marathon. 10Km to celebrate my 10 years in long walks.
10 Years of Long Walks, Jogs and Runs 2006 Half Marathon Run to 2016 10-Km Walk
I do get some visitors every day from Facebook. There are many bloggers who claim large number of visitors from Facebook.
I started a new Facebook Community today
Blogging Activity and Success - Discussion Group - Facebook Community
The Anatomy of a Facebook Post