I do not intend to disparage ccBetty in anyway, haven't used their service enough. I'm sure there's some users that will find their service great.

But mainly we wanted something to do secure business collaboration (all traffic over SSL, and the ability to S/Mime encrypt all the email traffic for example). We also wanted reusable group email addresses "somewhere@tgethr.com", instead of looking up a crap load of email addresses or everyone being forced to create their own groups of email addresses in address books all over the place.

We also wanted a dead simple way to manage multiple of these groups and not feel forced to use a webapp to use the tool well. Didn't find the solution to all these wants out there, and we feel we have a knack - our opinion of course :) - of doing simple web apps for business, so we gave it a go of making something that works for us.