The Voices of Marketing Podcast is now on my must listen list. John has a "normal guy" quality about him that I really relates with, and never feel he is only talking to eventually sell me something.
His interview with Andrew Warner of Mixergy was fantastic! I've seen several interviews with Andrew from some of the big boys in podcasting, I can honestly say I learned more things about him that interested me then I have from any other show.
Great work John, keep it up, have fun on your way to the top!