As part of my redesign of dig­i­tal emu­nc­tion, I decided to invite some friends to con­tribute to the blog. They’re all good and inter­est­ing writ­ers and people, and I’m very excited to have them here.

They’ll be arriv­ing piece­meal in the days and weeks to come, but I’m happy to announce that Joel Cala­han has already reported for duty. His first post is on its way…