So, I've already read The Amazing Adventures of Fanboy and Goth Girl. There were things I liked about it, but overall, I wasn't a huge fan.
Just for kicks, I watched the excerpt at VidLit -- and cripes, it made me want to read it again. If that's not good marketing, I don't know what is.
[Later: My god. I just spent way too much time at this site -- there's a hilarious excerpt of the first Clique book and A Day in the Life of Meg Cabot. There's lots of other stuff, too, but I stopped when I realized that I was voluntarily watching commercials and got a bit disgusted with myself.]