There is a new eBooks Humble Bundle, this time with books from HarperCollins...
https://www.humblebundle.com/books
The Curse of Chalion by Lois McMaster Bujold
Twinmaker by Sean Williams
Busting Vegas by Ben Mezrich
American Gods by Neil Gaiman
Map of Bones (with The Sixth Extinction excerpt) by James Rollins
Pay more than the average (currently $6.90) to unlock!
Angel's Ink by Jocelynn Drake
The Wasteland Saga by Nick Cole
By the Blood of Heroes by Joseph Nassise
The Witch of Portobello by Paulo Coelho
More books coming soon!
Pay $10 or more to unlock!
Dead Witch Walking w/Trouble on Reserve (Bundle Exclusive Novella) by Kim Harrison
[note: Dead Witch Walking is currently free at most stores]