Guilty as charged.

Wired writer Lore Sjöberg says that there are 7 basic blog posts:

1. Be Upset
2. Buy a Thing
3. Animals are Cute
4. People are Dumb
5. Something I Like, Only Different
6. Weird Science
7. Me, the Blogger.

I think the first and the last are so broad as to encompass almost every blog post ever. I am not sure it is a bad thing - weblogs are supposed to be something like a diary, so posts about me aren't necessarily out of place.