@ocelot60- I think the amount of newspaper advertising for any types of housing rentals depends on the area you are searching. Some communities have popular newspapers that contain numerous listings, while others have online editions that get more circulation than the hard copies. Online community newspapers would definitely be a safe and reliable resource for finding short-term housing rentals.
Another reputable online source might be the chamber of commerce in the area you are searching. While these types of websites might not have listings for housing rentals, they often provide contact information for resources that do.