[dmtintner]

CSS Tricks is awesome. Chris Coyier is basically the CSS god, and his posts are always about the newest and most highly relevant topics.

Joel on Software is old, and not updated often, but still an unbelievable source of knowledge about programming and especially developer careers.

And of course shameless plug for my own blog, Hacking UI, which I do read it every day since I develop it. My partner and I write about front end development, Design and everything in between.