It’s definitely increased my exposure! I always conduct myself professionally but that’s something I did in the “real” world before my presence in “cyber” space. I can’t speak for everyone. I do separate and maintain my Facebook profile more for personal use (and socializing with family and friends) and my LinkedIn profile more for business relationships. I feel like different sites are geared towards different uses and I think others feel the same way based on the way I’ve seen sites being used.