Ben Yoskovitz
@byosko · Entrepreneur, investor & author
Only question I have here is how do we know if these emails really are good? Did they do what they were supposed to? There are no numbers to prove it, which is too bad. I'd love to see open rates, click rates, etc.
Andrew Christison
@mrchristison · I'm L.I.T. -Leading, Inspiring, Teaching
@byosko This may be 3 years too late, but the company that you'd find that meets that need is http://www.edatasource.com/ They have panel data, which gives some pretty great metrics, since they're actual emails received by subscribers.