On Wed, Oct 15, 2014 at 4:54 PM, Adam Back <adam@cypherspace.org> wrote:
please not google groups *, I'd vote for sourceforge or other simple
open list software over google groups.

Please not sourceforge. 
 
* Google lists are somehow a little proprietary or gmail lockin
focused eg it makes things extra hard to subscribe with a non-google
address if google has any hint that your address is associated with a
gmail account.  Quite frustrating.

Mailman is good enough...