Self-Referencing Cartoons
Penny Arcade is a delightfully crass comic and editorial about video games. In the latest comic, as in many others, they make reference to themselves and their role (or lack thereof) in the industry. It was always so obvious that they did this, but I never really considered it before. In no other comic that I've read has the impact of the comic been discussed in the cartoon itself. Of course, many might find this tacky, but I think that Penny Arcade pulls it off quite tastefully. Another notable example of a self-referencing cartoon at Penny Arcade is the mockery of American Greetings following their being asked to take down a parody comic (if you want to see the original comic, go here).

I suppose this is the functional equivalent to Charlie Kauffman's Adaptation in cinema. For those who have seen it, you know what I'm talking about. For those who haven't, go watch it now (and then you'll also know what I'm talking about).