AntiqueSlots.Com
   Buys, sells, and repairs mechanical slot machines, electromechanical pinball machines, trade stimulators, old penny arcade games, and most anything that is coin operated.
   http://antiqueslots.com/

Classic Amusements
   Dedicated to the hobby of collecting Vintage Amusement Machines from the late 1800s to the 1960s.
   http://members.aol.com/pennyslot/

Coin Operated Collectors Association
   COCA is a club for collectors of antique (pre-1951) coin operated slot machines,trade stimulators, arcade machines, vending machines and related collectibles.
   http://www.coinopclub.org/

Eric's Shipping Service
   A door to door shipping service for collectors of pinball games, jukeboxes, slot machines and other related items.
   http://www.machinemover.com/

Liberty Belle Saloon in Reno
   Saloon run by grandson of slot machine inventor. Interesting slot machines and liberty bell bookstore
   http://www.libertybellereno.com/

Melvyn Wright's World of Vintage Slot Machines
   Classic British Allwins and slot machines.
   http://www.pennyslots.co.uk/

Sands Mechanical Museum
   Virtual museum of antique coin operated games, pinball machines, sports cars, and clocks. Restoration tips are also listed.
   http://www.sandsmuseum.com