Over on Exlibris, moderator Everett Wilkie writes:
"I am happy to report that the 1823 Tanner atlas reported stolen in a 5/5/07 Exlibris report has been recovered in Pennsylvania by a bookseller who was aware of the item because of the Exlibris report. Further details will probably be forthcoming."
Will post those additional details as they come in, but this is excellent news; it proves the point that getting the word out about these thefts actually does help - at least sometimes - in making their recovery possible.