Smashwords. They're available to buy there NOW!
As soon as they're accepted into the Premium catalog, they'll also be available in the Apple, Sony and Barnes & Noble ebook stores, among other places. So excited!
And, as a bonus, Awakening 3 is available for pre-order on Smashwords right now and will be available to buy and download on Smashwords and Amazon starting tomorrow, July 5th!