PDC 2008 session videos online on Channel 9
If you could not make it to PDC 2008 (Professional Developers Conference held in October 27-30 in Los Angeles) you should know that on Channel 9 you can look at video recordings of probably all the PDC sessions. You can even download WMV versions of each recording (both in low and high quality versions). For session calendar take a look here. Also, the list of top sessions is available here.