There is a Quilters' Classified group on Facebook. That's where I found my new-to-me longarm. I sent the seller a PM (private message) just hours after she posted it, went to her house to do a test drive, and made the deal within a few days. Just be sure to list your city/state if you post, to eliminate inquiries from people that aren't local (if you're not willing to ship). On the other hand, I've also seen some listed on Craigs List. Understand that on such a large purchase, that someone may want to do a test drive. Have a friend with you if a potential buyer wants to come to your house.