My buddy's shop, North Country Vintage and Custom in North Conway New Hampshire, and my shop Dead City Choppers (formerly Rat City Rods) in Berlin New Hampshire (not listed here) have been closed now for a few years, but if you're in the North Conway area, the many bicycle shops in town are all "rat friendly" and some of the shops even have a few vintage bikes for sale in the show room, so be sure to stop in and say hi to them if you're cruisin' through the valley!
VintageATL Located behind Village Garage on the corner of Glenwood and Brownwood in EAV. Just look for the Airstream! Open Thursday-Saturday 10-6 call 404 542 1618
Bike World http://www.bikeworldusa.com/ I think the prices are good and cheap shipping if you know any better sites let me know Thanks Floyd
Freewheel Bike Co-op 1804 S. Park St. Unit 5 Madison WI 53713 No phone, but they have a facebook page here: http://www.facebook.com/groups/206717132703064/?fref=ts I volunteer here and there's lots of cool parts and frames to mess around with, and they can help you build stuff.
Tim's Bike Shop 2401 Broadway Everett, Wa 98201 425-257-9037 Facebook page is https://www.facebook.com/TimsBikeShop
Just found out the Behind Bars guys opened a shop not far from me. The Cruiser Shop 321 East Campbell Ave. Campbell, CA 95008 Tel: 1-408-871-1335 Web http://www.thecruisershopcampbell.com/ Facebook https://www.facebook.com/TheCruiserShopCampbell
Benson Bazaar 6013 Maple St Omaha NE 68104 This is my antique shop. We always have cool vintage parts on hand, and, of coarse, lots of old bikes too!
Bicycle Depot 5107 Columbus Ave Anderson IN 46013 (765)644-0230 Greg tells me that I bring him all the interesting work, like my current Raleigh Twenty bottom bracket conversion. Lots of odd-ball parts - good service - Greg is one of those guys you want to know.
Check out Planetary Cycles. Ask for Danny. Not much in used parts, but there are 15-20 vintage bikes in the store most days. Some are hung up and display only and some are for sale. Planetary Cycles 8715 West Loop South Houston, TX 77096 713-668-2300 http://www.planetarycycles.com
Also: South of Houston: Island Bike Company in Galveston, Webster Bicycle, Bay Area Cycles (Bowling Schwinn) in Pasadena In Houston: Daniel Boone Cycles, Blue Line Bike Lab, West End Bicycle (Klunkers & Vintage MTB)
The Old Bike Shop of Arlington, VA has a good supply of old bikes, used bikes, and parts. They've been helpful in a couple projects I've had recently. http://theoldbikeshoparlington.com/