For the next couple of days, Humble eBook Bundle is offering four science fiction and fantasy books for whatever price you want to pay. The proceeds go to the charity of your choice.
If, however, you pay more than the running average (twelve bucks and change at the moment) they throw in six more SF/F books, and a contribution of $15 includes one more.
Authors include Holly Black, Mercedes Lackey, and John Scalzi. But the title I’m most excited about is an anthology titled Zombies Versus Unicorns, because heck to the yes. What is it about? Don’t know, don’t care. The title is enough.