If you thought Mad Men's egregious use of Arial during its closing credits was Matthew Weiner's only typeface-related boner, you'll probably want to sit down before reading any further. Designer Mark Simonson did some investigating and determined that many of the fonts used in the show were either created in the seventies or not yet used in America in the early sixties, when MM is set. Seriously, what the fuck? [Mark Simonson via Kottke]