"Great feedback, Paul. Thanks for the additional insight. What I mean by email is you want a way to contact your group outside of Facebook, should Facebook makes changes that make this difficult. Ultimately, you want to own access to your group. As for being charged for a group, I have a fee for members of the NBN Club. I tried running the club on LinkedIn at first, then as a private forum, but ultimately found Facebook to be the most beneficial for the members and to administer." - DaveDelaney.ME