Hey there! It's supposed to be 6 people of your choosing, and it's not required that you ask around first. I mentioned it in my LJ because I wanted to see if there was anyone who was keenly interested, because then they'd more likely continue it on, rather than sending it to a random friend who might or might not participate. : ) Also, some people don't like to receive random things like this. But you know your friends better than me! So it's completely up to you how you want to get 6 more people involved.
Re: Book Club/Exchange
I look forward to seeing your book selection! :D
Sarea