First, thank you for compiling such a list. I have used to find many a good book. In fact, I just finished reading "The Bones of Time" by Kathleen Ann Goonan, which is already in your list. It's a good book, however, it's nanotech content should be downgraded to a 2. It was mentioned several times, but had very little to do with the primary plotline.
Mike Jones
mrjones@hiwaay.net