I found sama's class (
http://startupclass.samaltman.com) to be a particularly great collection of knowledge. I remember catching a few almost subtle drops of wisdom that I'd have underappreciated had I not previously known some info I'd already picked up by studying other educational resources on startups. I'm sure there are more that I did not catch. So if this class is one of the early resources you utilize, then I'd suggest you revisit it again later as well.