Seems some people (myself includes) have been using the Facilitating Online Communities email list from the Google Group for our class more than blog posting and threaded commenting.
I will quote my reply about this from earlier today:
One of the reasons I think this may be happening is because emails are immediate. I am able to reply to your email question while sitting in a train waiting for it to leave via my BlackBerry. Though underground, this response will get sent as soon as I go above ground again.
I cannot blog from here, and as I want to reply immediately, this seems the best option.
That GoogleGroups archives and makes all this searchable only seems to increase its use.
So, now I am blogging about my email response. Perhaps they can be used concurrently?