Last weekend I ran into Aldo Castañeda at the Barking Crab while I was on the self-guided Boston HarborWalk MP3 audio tour after having beers with Mayor Menino.

Aldo is behind The Story of Digital Identity podcast which features interviews with the people shaping the future of digital identity.

I was interviewed for Episode #29. In this episode I described what I call the Identity “stack” (my view of identity from a marketer’s perspective).