I believe I found another one as a source of traffic to our website and blog here. It beat out Facebook for traffic the other day to this blog. It is called NewsMeBack. It touts itself as the place for citizen journalism and social news, a place for you where you can put your news, events from everyday life, something interesting that happened in your life or else.
It's simple to join and submit your news and blog posts to. You have to choose from 1 of 5 cities of where you want it posted. The one element I cannot figure out is the social element. I can't seem to find how to follow others. There are no directions to be found. Maybe someone from NewsMeBack can explain here in the comments. I'm hoping!