It’s a co branded engine for PayPal commerce sites … check it out. From the release:
TheFind, Inc. (www.thefind.com) today announced the launch of paypal.thefind.com, a new shopping search engine built specifically to enable consumers to browse products exclusively from merchants who accept PayPal payments.
Just like results on TheFind.com, products will be shown to PayPal customers as visually compelling catalog-like images, not simply text links or thumbnail images. Unlike traditional comparison shopping sites, merchants will not have to pay for their products to appear in search results on paypal.thefind.com; instead, products from PayPal merchants will be indexed and become part of the natural search results.