Eric, I'm gonna have to disagree with you here. Your comments are about FB and what you feel is their path to obscurity, that's fine but it's not the topic at hand. The topic is how GPN uses FB NOW to talk to their fans. Let's face it - music relationships that work the best look like this:

Bands <-> Fans

Anything else is any the way. Your job as a musician is to use the tools you have to best communicate and establish relationships with your fans. I was there when the GPN FB page had 900 fans, now it has 221,000+. That's awesome growth and awesome responsibility. If the bulk of the way you use that channel to communicate "BUY NOW" opportunities  to your fans then you are, in my opinion, squandering a huge opportunity. Grace has established a welcome, friendly presence on Twitter. It feels personal, it feel like her because IT IS. That said, I've got the capacity to criticize that as well but that can't be a surprise right? The FB thing reaches, what, 3x the fans - and it feels like a corporation.

You may not like FB (neither do I) but it's the tool that's their and it makes sense to use it in the best way possible. This is simply not happening. Facebook 101 says "post a picture with any information" - this has only recently started happening. What's missing is any sense of engagement.