90% of my scrap comes from Facebook. I recently answered a help needed ad on Facebook from a local business. It was a ad to help a guy do some demolition on a burned house that he owns. I showed up and asked for all the scrap in the house. I spent about 3 hours helping with the demolition and took home a full truck load. I told the guy if he came across more scrap just set it along the dumpster. When I went by on my way to work the next day there was another pile (about half a truck bed). Never underestimate Facebook.