I'm either not to eager to do it with google
I don't mean to come on like a google cheerleader, myself.
But I've been meaning to host this thing as a mailing-list on one of my own boxes for years now, but I've finally admitted to myself that I'm too lazy and I might as well bend my principles a little and go with something like google groups.
BUT it's not a Mailinglist.
And I kind-of like that feature myself... I'm going to stick with what I've got for a little while longer (I've only just begun recruiting), but all keep your alternate in mind.
