I just returned home and am checking in here. I found earlier a VERY INFORMATIVE website with tons of information on retrieving lost and stolen pets. For instance, they give lists of places that you should leave flyers, people/services that should get them, everyone from postmen, to garbage collectors, road crews,florists.... the list goes on and on, but is VERY COMPREHENSIVE. There might be places/people we have not thought of. Find it here:
http://www.eburg.com/%7Edalmatia/stolenpets.html
They also provide a list of links relating to the search for a lost pet:
http://www.eburg.com/~dalmatia/splinks.html