If you're ever interested in one of the most highly recommended books from Silicon Valley, Steve Blanks's "The Four Steps to Epiphany", do check out this condensed ppt presentation of the book:
http://ree.stanford.edu/archives/archive08/usa/presentations/Stanford_REE_Customer_Development.ppt.pdf
Steve Blank's Notes on Customer Development Methodology
posted 2009 Mar by Posterous