Why Niche Social Networks Encourage More Meaningful Interaction [OPINION]http://mashable.com/2011/09/06/social-network-niche-interaction/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Mashable+%28Mashable%29 by matusz13 • 15 years ago 2 0 15 years agoMAmashable.com