Startup thinking - the people who have most influenced my thinking on startups.
Steve Blank and Eric Ries
Steve Blank teaches entrepreneurship at the Haas Business School in Berkeley, but has a pretty serious pedigree as a tech entrepreneur himself. I'm ashamed to admit that I still haven't read The 4 Steps to the Epiphany, but I've read most of what he's posted online.
Eric Ries is a protege of Steve Blank's, applies and develops many of the same 'lean' ideas, and focuses specifically on web startups.
See the links for both Steve Blank and Eric Ries here.
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Paul Graham
He's a tour de force and a hero of mine. One of the early proponents of 'release early, iterate often'.
http://www.paulgraham.com/start.html
http://www.foxbusiness.com/search-results/m/25897600/funding-tech-start-ups.htm
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Joel Spolsky
These are my favorite as they relate to HR:
http://www.joelonsoftware.com/articles/GuerrillaInterviewing3.html
http://www.joelonsoftware.com/navLinks/fog0000000262.html