I might have had a minor freakout when I saw this was available, so how can I not share this? Rick Riordan wrote a new Percy Jackson story, which is published in Guys Read: Other Worlds. There are several stories inside, including stories by Neal Shusterman and even Ray Bradbury.
I'd love to share the browse inside widget, but somehow that doesn't work... So I'll just give you guys the linkie instead :)