http://www.freestylephoto.biz – All wet lab photo supplies, especially film, paper and process chemicals. Also good for some traditional equipment
http://www.adorama.com – huge store, good for digital supplies and all equipment, used and new
http://www.bhphotovideo.com – huge store, good for digital supplies and all equipment, used and new
Photographers Formulary – bulk chemicals (over 200 in stock) in any quantity, plus “classic” formulas and printing processes, and kits for the most up-to-date film emulsions and alternative processes
Quality Camera, Atlanta GA 404.881.8700, talk to Jeff Wheeler – very good for all used and almost new equipment, and especially film cameras and large format.
http://www.archivalmethods.com – storage solutions and archival supplies for photography such as storage boxes, cases, enclosures, and mounting, matting & framing materials
color and film processing: http://www.procameraus.com
for anyone interested in working with color film and Holga cameras.