Seth Godin at Gel 2006 from Gel Conference on Vimeo.

Why are so many things broken? In this entertaining talk - one of the favorites of Gel 2006 -
http://gelconference.com/c/gel06.php
Seth Godin gives a tour of things poorly designed, the reasons why they are that way, and how to fix them.

See also: Seth's Blog, where Seth writes daily on marketing, business, and other issues -
http://sethgodin.typepad.com/

http://www.openculture.com/2010/09/the_partially_examined_life_a_philosophy_podcast.html