David Letterman’s been full of internet references lately. Besides haveing a Mahir-lookalike playing ping-pong backstage (“I kiss you, David Letterman!”), last night his guest John Withspoon heavily plugged his site, www.bangbangbangbang.com. There, you can buy T-shirts with such witticisms as “You got to coordinate” and “Ho’s got to eat too”. He claims he’s made up about 1000 shirts and sold 30, so he’s sure to have your shirt in stock.