Patent ID: 8473340

Claim:
A computer implemented method of marketing a product in an e-commerce system, the computer implemented method comprising: a web page server receiving, from a specific user, a request and authorization indicium with the request for a current web page that displays a particular product, wherein the authorization indicium is an express authorization, granted by the specific user to the web page server, to retrieve a content of a previous web page related to the particular product; the web page server retrieving the content of the previous web page that offered the particular product at the previous price, wherein the content of the previous web page includes the previous price at which a previous web page offered the particular product, wherein the content of the previous web page is identified by a browsing history of the specific user, and wherein the content of the previous web page is available to the web page server only if the specific user has provided the authorization indicium in the request for the current web page; dynamically adjusting a current price for the particular product based on the previous price offered on the previous web page; and presenting a dynamically adjusted current price for the particular product on the current web page, wherein the dynamically adjusted current price is presented only to the specific user on a computer that retrieved both the previous web page and the current web page.