She's adorable! None of the local vets or groomers recognized her?
How strange, definitely could have gotten away from someone traveling.
I checked the missing pets ads on Petfinder, but didn't see one that matched her descriptiong, but you may want to check it again later on to see if maybe someone has posted something.
http://www.petfinder.com/classifieds...ied.cgi?type=L
Also, did you put a photo on the FOUND ads? If so I would be very cautious to anyone calling saying she is theres. Usually if you find a pet the best thing to do is put as little description as possible, and then if someone calls have them to describe her so you know they are the proper owners.
Good luck on finding her home.