The Onion has it down:
The No. 1 rule of my blog is that there are no rules. I write about everything from movies I've seen to crazy observations that just pop into my head about Starbucks. And sometimes I'll just write, "Had a pretty boring day today," take a picture of myself eating cereal for dinner, and call it a night. It's a web log, people. I'm not striving to be a great essayist, but if by chance some amazing commentary flows out of my keyboard, so be it. I don't write my blog to entertain anyone else, especially not some uptight Esquire editor. But if an Esquire editor is crazy about my work, and wants to run a three-page spread on my hilarious reviews of horrible movies, who am I to dismiss it out of hand?