I have a video interview on MIX Online titled "Greg Linden: Trends in Collective Intelligence and Centralization".
I ramble on for about 20 minutes on topics in personalization, recommendations, and some thoughts on MapReduce and Dryad. Nothing earth-shattering in there, but perhaps worth twenty minutes if you just can't get enough Greg Linden in your day.
Watching the video requires downloading Microsoft Silverlight, sorry about that. If you do go ahead and install Silverlight, you might as well check out its nifty multiresolution image zoom demo on the Hard Rock site too.
Update: In the comments to this post, Simon Lyall pointed out that the video is available in many formats at the bottom of the page (under the "Downloads" section), so Silverlight is not required to watch it.