Blog and online fiction recommendations for high schoolers?

So, I'm working on a series of booklists to encourage students to read and explore cool stuff over break. I'm trying to figure out which things to suggest online - they should be of interest to high school students and not likely to either overwhelm them or make their parents desperately unhappy.

Fiction already on my list:
- Shadow Unit
- The Girl who Circumnavigated Fairyland In a Ship of Her Own Making

Comics:
- Girl Genius
- Gunnerkrigg Court
- Leanne's Autumnside and Winterside ;)

Most of my reading tends toward the more-geeky side of the spectrum, and I'd like a wider variety.

Anyone got suggestions? General content blogs, blogs about books, etc. are particularly welcome.

(Also, in work-preening, I have just managed to get one of our sophmores hooked on papersky's books. Go us! (Jo for writing them, student for having taste, and me for putting them together, or something.))