six pixels of separation

Many of the podcasts I listen to on a regular basis have Facebook groups. Ones that immediately come to mind are Six Pixels of Separation, Jaffe Juice and Gen Y Marketing Podcast. But what is the point? The groups all seem dead. Julian Cole says they can be used to promote podcast episodes but I can't help but feel members of this group would already be subscribed. Similarly, these podcasts usually start or end with the same spiel in each episode. As regular listeners, surely we already know where to find you, how to contact you and have checked out the blog? This valuable content time and energy is wasted on a few potential new listeners. It seems like an incredibly outdated approach and almost mass media like. Why waste time preaching to the choir?...