Product-based advertising

A computer-implemented method, including:

• receiving a request from a seller, the request including a product identification and a financial metric;
• assigning to the seller, responsive to the request and based on a distance function and the product identification, a matching identification entry included in a set of existing identification entries;
• extracting, from a selected content page, at least one identification entry included in the set of existing identification entries;
• identifying at least one seller ad associated with the matching identification entry, responsive to the request and determined by a relevance function based on the financial metric and a distance measured between the matching identification entry and the at least one identification entry extracted from the selected content page;
• and
• advertising an identified at least one seller ad on the selected content page.

A system, including:

• a first means to receive a request from a seller, the request including a product identification and a financial metric;
• a second means to assign to the seller, responsive to the request and based on a distance function and the product identification, a matching identification entry included in a set of identification entries;
• a third means to extract, from a selected content page, at least one identification entry included in the set of existing identification entries;
• a fourth means to identify at least one seller ad associated with the matching identification entry, responsive to the request and determined by a relevance function based on the financial metric and a distance measured between the matching identification entry and the at least one identification entry extracted from the selected content page;
• and
• a fifth means to advertise an identified at least one seller ad on the selected content page.