You probably already realize by now that having a presence on Facebook, Twitter, LinkedIn, Google+, Instagram, and Pinterest is what most social media experts guide you towards. And there is nothing wrong with any of those sites. But what if you could divert a fraction of your efforts to smaller, more niche sites where the user base is smaller but much richer because they represent your audience. Today’s LinkedIn Lady Show will bring you up to date on some of the top niche sites and which businesses or professions might want to explore. In the meantime, check out BlackPlanet, Care2, Last.fm, Meetup, Reunion, Take Part, and Xing, just to name a few.