Thanks for tweaking the Social Groups to allow for particular discussions within each group. I really, really like having that option.

Is there some simple way for me to notify all the members in my group or in any group, other than posting a message to each of their profile pages or listing them all in a PM? Would that in any way conflict with discouragements of spamming?

It's perfectly okay to send a group pm...I haven't found a way yet to link the social group membership list to a pm - if anyone knows how, let me know!!

I love it too. Its like mini subforums.