It's hard to imagine there is anyone left on the planet who isn't a registered eBay user. But for those two or three people left, eBay is willing to pay the affiliate seller who bags 'em up to twice what they are paying now.
Starting June 1st, eBay is significantly raising their payouts in their affiliate program. Payouts come in two forms: ACRUs (a new eBay active user) and a % of eBay's revenue from fees. Here's a link to eBay's announcement where you can compare the old payout tables to the new ones starting in a couple of weeks.