Pownce tends to be a wealth of new happenings and trends on the net. Recently Daniel Burka sent out a little message that his recent presentation on UI Case Studies was online with the accompanying audio and slides. Daniel took this presentation to go over the growth of the UI on both Digg and Pownce. How it has completely evolved to what it is today. I have to say I was completely impressed with all of the work that goes into the UI of Digg. All of the small changes that have affected the sites story listing and comment interfaces. Lots of little changes have massive effects on both the brand and the usability of the site as a whole. Very cool stuff. Take a 45 minutes, sit with a drink and watch this presentation.

Link: http://www.webdirections.org/resources/wdn08-daniel-burka/