Reading Jimmy, again, I find John Walker (the Autodesk founder not the Kiwi Athlete) has a blog. I knew of his website, as read The Autodesk File there a few years ago, but the blog is well worth a visit/subscription.
I really like his book reviews as they cover a huge variety of topics from Gunfights to The Ultimate Computer.
Fourmilog: None Dare Call It ReasonVia JTB World
John Walker's Fourmilab Change Log