website publishers create an account, add descriptive tags relevant to their content, and place an embed code on their site. The AuctionAds widget will then show eBay auctions relevant to the tags. See their demo page for more information.
AuctionAds says they’ll pass 100% of eBay affiliate fees (paid on new eBay user registrations and a percentage of sales) on to publishers for an interim period. Since eBay pays sliding fees based on the total business generated by the affiliate (which in this case is AuctionAds), eventually AuctionAds will be able to skim some fees off the top while still promising to pay sites at least as much as they’d earn as a direct affiliate.