One of the benefits of working online for a long time is that you can see patterns. No matter what online selling tactic is out there, it was met with fear, experimentation, acceptance and then a final declaration of its death (although its rarely dead.)
The one thing you can count on when selling is that the emotions never change. I can send you an email, a tweet, snail mail or a bygone telegram, but without connecting with your emotions, it will be DOA. If I don't grab your attention or make you stop to explore, I've wasted your time and mine.
This is just a reminder to think less about the tactics and more about the message.