I've never seen more authors than those who lurk around Facebook daily. But it doesn't help them to be there if they are not making full use of everything Facebook has to offer. For me, the reader, I have a wealth of info at my fingertips now because of FB. I can pop over to any author's page or profile and see what they are writing and take a peak at what others are saying about it before I buy.
I recently met a great group of women and one comes to mind, Nichole Gibbons Osborn. She's a writer, blogger and soon-to-be author. I also had the pleasure to befriend Janet Chester Bly, an awesome writer, and to become closer to Joyce Sterling Scarbrough. Other great writers I've met there are Lee Ann Ward, Linda Kozar, Julie Malone, and Tricia Goyer.
I'm making good use of Facebook, getting close to the authors I read everyday, and posting to further the kingdom of God. What could be better?