David Armano of Critical Mass, author of an excellent blog on social media – what he calls micro interactions – gives us his perspective in a podcast interview (10 mins) on ways to measure in social media, and how to judge ROI.

(P.S. Because I couldn’t figure out how to work the CallBurner software the conversation ends with a namecheck for French philosopher Jean-Francois Lyotard – coiner of the term “grand narratives” – whose idea of “petits récits” has some resonances with David’s micro interaction idea)