Ning, Groupsites & Niche Communities: I hold membership in several sites beyond the Facebook, LinkedIn and Twitter communities and benefit from them more in terms of social capital and content sharing. These are great social networking communities as many of them have produced the desired reach to my target markets. Honestly, I am not as engaged with these sites as I once was, as many of their founders and/or members are on the "big three" social networks. But these private communities have produced a more intimate/personable value which has lead to increased revenues via favorable introductions and strong referrals. Some of my best social networking communities that I enjoy and find value are: Izania.com (pictured), EmpowerMe.org and LinkingPowerForum.com.