Shotglass.org is largely devoted to post repeal glasses but it contains a number of useful links and ideas about displaying shots.  Well worth a visit.

John Crary maintains a bottle-collecting web site site that often has shot glasses for sale.  Well worth a visit from time to time.

Flea Markets and Bottle Shows:

	Flea markets can be an excellent source of pre-pro's at bargain prices for those who have the patience to sift through other offerings.  An online guide can help locate locations in your area.
	Antique Bottle and Glass Collector magazine publishes an online calendar listing dates and locations of bottle shows around the country. Antique bottle dealers can be a useful source of pre-pro shot glasses.
	The Federation of Historical Bottle Collectors also maintains an online calendar that is helpful for locating nearby shows.

	Custom Displays makes display cases for shot glasses at a very affordable rate (I tried duplicating one and the materials alone cost me 50% of their asking price).  Their cases have a plexiglas cover which is essential for protecting  pre-pro glasses from dust and spouses who wish to remove it.
	Annette Huperz has a selection of glass-fronted cases available on her website AnnettesGiftZone.com
	Many other displays and plans for making displays can be found through the shotglass.org links page.

	Abebooks.com (my favorite)
	Alibris.com (expensive)
	Bookfinder.com  (another favorite)
	Ms. Information maintains a web site for out-of-print antique and collectible books where on can register needs.  Well worth a visit

Museums: 

When we're talking shot-glass and pre-prohibition, there really is only one museum and that's the Oscar Getz in Bardstown, KY.  If you have a chance, you should visit.  Although their display of shots is limited, there's plenty to look at and lust over.  For more information, see the Getz page at www.bourbonrecipes.com.

Others:  You can find more sites on brands used by the old companies and histories of the various distillers on the Research Links page.