Fluid–Create Site Specific Browsers from ATMac is a new concept to me and has interesting potential.
This stat filled video about social media is eye-opening.
Speaking of video, O’Reilly Media has a lot of video from the Web 2.0 Expo up on YouTube, including this interview with a good deal of talk about HTML5, Flash, and other technology from Brady Forrest, Eric Meyer, and Ge Wang.