Brandon Sanderson, while on his book tour for The Way of Kings, has been conducting a digital hunt for thirty codes. As these codes were entered into a particular website, pieces were revealed of one of the chapters from the upcoming Wheel of Time book, Towers of Midnight.
The last code has finally be entered, and Chapter 8 of Towers of Midnight is currently up on Sanderson's website.
You can read it here! :-D
Also, if you wish to read discussions about what's been revealed in the hunt (the codes were all chapter titles) and in the posted chapter, I recommend checking out either Theoryland or Dragonmount.
November 2 can't get here fast enough!