Well, good luck with the whole getting them into the UK Top 40 thing, Brady. I tried a similar thing a few months back; organised a Facebook group called "Help Spoon get into the UK Top 40". However, it achieved absolutely nothing: The people who joined the group, all five of them, never really responded to the emails I sent them, or never really participated in the little events that I organised. Plus, I don't think any of them really knew what they had signed up for, or what I was trying to achieve.
I wish you luck with it, though. Just out of interest, what's your plan of action with your Facebook group? I'd check it out myself, but I've long since deactivated my account...