Found this post titled Geek Marketing 101 at Make Marketing History by way of Guy Kawasaki's Blog. Of the little I have read so far, the Make Marketing History blog looks promising for no-nonsense business/marketing tips.
As for Guy Kawasaki, I have been enjoying his blog for the last couple of months. I don't remember how I stumbled across it, but it's an interesting perspective on business. If you don't know who Guy is, go ask "the old guy" in the IT department at work and learn a little history of your world. Or for the advanced history course plus some current trends, check out the new DVD In Search of the Valley and enjoy some stories from Guy, Woz, John Warnock, Craig Newmark, and others.