Nice video tutorials.

http://www.irongeek.com
http://www.security-freak.net
http://www.wireless-network-tutorial.com
http://msdn2.microsoft.com/en-us/beginner/default.aspx
http://www.asp.net/learn/
http://www.iis.net/default.aspx?tabid=2&subtabid=24
http://msdn.microsoft.com/theshow/archive.aspx
http://developer.yahoo.com/yui/theater/
http://webcast.berkeley.edu/courses.php
http://www.cs.washington.edu/education/courses/csep590/06wi/lectures/
http://www.fas.harvard.edu/~cscie1/
http://www.microsoft.com/emea/spotlight
[This list will be updated when I come to remember or discover new sites! Have fun!]