The group is new, but once it gets enough members last.fm will start generating stats for what the group as a whole is listening to. Last.fm has been a great way for me to run across new music, several of my purchases over the last couple of years were music that I found through last.fm B&W is also paying attention to this, they have already sent it out through twitter and their music club blog. Hopefully it will also show them what the members are listening to and perhaps make the service even better. You can find the group here on last.fm