This CSS design is an experiment in layout. There are two sidebars stacked vertically. The second sidebar stacks horizonally, visually making 2 sidebars out of 1.
A List Apart’s article on typesetting (followed to the letter because IE sucks)
Joen Asmussen’s brilliant idea about adding columns without touching the markup
Dezinerfolio’s web2.0 layer styles
KDE‘s Oxygen icons project
Datestamps inspired by the cover of Eero Saarinen, designed by CoDe Communication and Design