Of all the blogs on entrepreneurship I read, Paul Graham's writing probably resonates with me the most. Maybe it's because he is a programmer too. He had a lot of success building/launching what became Yahoo Stores and is the real deal. His writing is also outstanding, he polishes and perfects about one long article per month - and has a particular affection for analogies. He's a philosophical guy, so at times the topics border on mental masturbation rather than practical advice, but there is plenty of the latter as well. Definitely worth checking out!