BuddyPress.org

Or maybe I don’t understand how is working (what is doing).
The plugin can connect to facebook and can authorize the member to do whatever he/she wants, but there’s no activity exchange between my site and facebook. Shouldn’t the buddypress import the facebook activity and vice-versa? Like I’ve said, that’s what I thought is does, but it doesn’t. I’d be happy if the plugin could post to facebook, only, not necessary to get the member’s activity from facebook.
So… any help or explanation on what is doing the plugin?
Thanks