Dave Evans is back. One of my favorite DishyMix guests and author of the top selling book on social media, "Social Media Marketing: An Hour A Day."Expand your mind as we talk about:1) The evolution of social media as a business platform: Beyond marketing, into collaborative design (Starbucks MyIdea, GM Labs) and enterprise knowledge transfer (platforms like Social Text, Bob Pearson's work at Dell). This is the subject of the book Dave is working on now.2) The parallels of India's social media audience with the US and what it means for business (higher expectations in India) and society (increased awareness and use of shared language by global 13-24 yr olds). Dave wrote about some of this in ClickZ recently: http://www.clickz.com/36360063) What Dave learned about himself, as a result of being separated from his family during a particularly heavy bout of business travel.And, if you're going to ad:tech San Francisco, 2010, join Dave and I for the Marketing Masters special track on social media.