These 'You suck at photoshop' tutorials are masterpieces of intelligent executions edutainment. Slickly produced and very funny. (Educational too if you're looking to pick up some photoshop skills.)
I love this kind of smart-ass information delivery. After I get the 'corporate' look and feel stuff done for Sendside I'll be looking to stimulate the rest of the economy with just this type of tongue-in-cheek delivery.