This is a free listserv site. You will have to register onsite, then you may choose which lists to subscribe to. Choose the Sessionals list. If you want to organize a provincial or national sessionals conference - this is a good place to find attendees. The list will work if you help to keep it active.
Commentaries already exist on the list.
Check them out and don't overlook the Reply button if you find them provocative. Your submissions and replies need not be lengthy, and it takes very little time to participate actively.