Excellent guide to metals identification and scrap yard locations, great youtube channel
Rob the Plumber
all around great site and excellent Youtube channel
Scrap metal Forum
SMF is a bit crusty and old school in graphics and hard on the eyes, However, pay attention join and dig deep for awesome and detailed info.
We highly recommend Material Mix, well designed and gaining significant traction for selling your scrap direct instead of giving up margin to Brokers.