I first wrote about it last year and still haven't missed an episode. Since moving in with Mother, I find myself watching too much television. Appointment television for me is Mad Men and Project Runway. Those are all I can think of at the moment.
Back to Mad Men. I found great prints, illustrations and desktops on Flickr from a very talented artist. She also has this website.
And there's a Mad Men fansite called Basket of Kisses. The first, best, and most adorable Mad Men fansite. Unofficial and unauthorized.