The third and fourth parts of the Vidding section of the DIY 2010 show - featuring interviews with vidders Giandujakiss, Flummery, Counteragent, and kiki_miserychic - are now available at Henry Jenkins' blog. For your reference, links to all four sections are below.

Vids: Part One
Vids: Part Two
Vidder Interviews with Giandujakiss and Flummery: Part Three
Vidder Interviews with Counteragent and kiki_miserychic: Part Four