Eric Sink's crabbyness
One of the blogs I would recommend to everyone is Eric Sink's blog. Not only are the blogs insightful and full of knowledge, they are very well written and most of the time great entertainment for the geek's eye and mind.
Today's blog about two bugs Eric and his team ran into (in other people's software) is highly recommended: for the great illustration about how stupid some developers can be, for the style the blog is written in and for the way Eric manages to crank in a lot of humor into his texts without effort as it seems. Eric: more blogs please :)