Yikes! A guy named Don Wiss has created a popular site that shows the actual buildings at the addresses where Brooklyn camera stores claim to operate. The common wisdom in the world of cameras is that a Brooklyn address means a scam, and this site shows some of the more remarkable ones.
Due to some help he gave a recent poster who had problems with a particular vendor, the story was slashdotted, and Don started receiving death threats from someone involved in the store in question. He tells his story here.