Abstract: A data processing system comprises a client device connectable to the internet, the client device having a web browser for accessing information via the internet; the web browser being operable to access a list providing groups of internet addresses of online retailer internet pages, each group having two or more internet addresses each relating to different respective retailers' offerings of an item for purchase, so that a current internet address being accessed by the web browser is compared with internet addresses in the list and, if the current internet address is found within one of the groups, the other internet addresses in the group are returned as alternative internet addresses relating to a current item being viewed; the web browser being operable to detect a retail price of the current item from each of the internet addresses in the group containing the current internet address; and the web browser being operable to compare the retail prices and indicate the lowest such retail price for the current

Abstract: Methods and systems for monetizing editorial and user-generated content via conversion into affiliate marketing links. Aspects of the disclosure, for example, are directed to methods and systems configured to enable rewriting of URLs based on a synchronized database of merchants collected from a breadth of affiliate networks. In several embodiments, for example, upon posting of a URL to a user-generated website or on clicking of a URL on such a site by a user, the server system compares the domain name of the URL against a database of merchants synchronized across multiple affiliate networks. When a merchant's domain name is found, the server system may convert the URL using a deep linking syntax outlined in the merchant database so that the URL becomes an affiliate link that leads to the original URL via the corresponding affiliate network. User clicks on this converted URL may generate affiliate commissions.