All the Lacey novels that have been e-released so far are now at Smashwords--as is the brand new, never-before-published The Necklace Affair!
View all here: http://www.smashwords.com/profile/view/AshleyGardner
The Necklace Affair has already reached Nook as well: Click here to go to the Nook version.
The Kindle version is still in process, should be ready in the next day or so. (You can also find a version for Kindle at Smashwords).
More to come!