I know exactly what you mean. I stopped all those games and nonsense and started spending my time studying about a year ago, and I've never looked back!!
However, I'd be remiss if I didn't point out what a great tool Facebook can be for those who are networking with others who are on a similar path of enlightenment. My spirit gets a great uplifting when I read the various quotes, updates, and stories from those who are on a similar journey as myself.
I think that ultimately Facebook is a tool, just like anything else, so we have to use it correctly to get the most benefit out of it.