There is a HUGE amount of buzz around social networks and the potential for use.  Today, I present NING a tool that allows you to create your very own social network.  Within your new network users can post blogs, pictures, and messages on forums.  You can also make your social network private or allow outsiders to join.  How can this be used?  Huge organizations have paid BIG bucks to create enterprise social networks.  Communicate with employees in a better (and more fun) way.  Create a family social network and connect with people all over the globe.