brianemwd If you're comparing Groups.io with Mailman 2
Definitely not recommending, since I haven't used it :-) I only mentioned it because I didn't see it listed here and it looked ok from what I read on their site and some reviews. I quoted what I did just as quick reference for the readers here.
brianemwd [...] The only reason to choose Groups.io over Mailman 2 is if you wanted a forum for your primary means of interacting with others. Otherwise, Mailman 2 is better as a list serv and definitely more affordable.
Thanks so much for your review! Very helpful information.