I have Florida land for sale on eBay. It is currently listed at $1799. The land value is currently $2,176 and in 2006 it was worth $17,300. This is a homesite lot, so it is good quality. I plan to end that eBay auction early when I get a legitimate bidder. All I want is a contractor to get me a buyer for that listing. If it ends up being successful, I will pay a flat $100 to the contractor. The contractor must be able to prove that they were the ones that referred the buyer. Perhaps with some kind of information of the buyer, like their eBay username or even their regular name.