With all the sexiness oozing out of social media it might seem insane to write about email. It’s been relegated to the “OMG that cesspool of spam that no one cares about because everyone is using Google Wave and Facebook!” Not true. Email remains an immensely credible and profitable channel, with an immense reach to boot. To not have it as an active part of your marketing portfolio is sub-optimal. The only requirement is that your mental model (and indeed, company culture) should be solidly rooted in permission marketing. Every fiber of your being. Every thought that crosses your mind.…