A lot of these responses seem to involve emailing people who have not opted in to your list. The last time I checked, this was called spamming and while not...

Hm, I understand the problem. Well, I suggest to set up a goal based on secondary researches (benchmarks) or just give the investors a logical route for you...

Hey Eduard, There are a few things you can do to help retain some of your customers, but first do you know why they're leaving? The answer to this may he...

Your first stop should be http://www.useronboard.com/ by @samuelhulick

Buffer was the first one to come to mind for me - but you already included them in your summary.

Thank for sharing with the GH community, Dave =)