A List Apart Magazine
“For people who make websites”
A List Apart Magazine discusses a wide range of web related issues. It has articles relating to web standards, best practices and content improvement. It is designed for graphic designers, content providers as well as web developers.
I liked the Suckerfish Dropdowns article by Patrick Griffiths & Dan Webb.
I found Multi-Column Layouts Climb Out of the Box by Alan Pearce to be a good read.
The source code is free but the articles are copyright protected.