Abstract: Various computer-implemented methods are disclosed for identifying web sites and web pages that are related to each other. One such method involves collecting search activity data indicative of particular search terms submitted, and corresponding search results selected, by each of a plurality of users. The accumulated search activity data is analyzed on an aggregated basis to identify search-activity-based associations between particular web sites.

Abstract: A system is disclosed that enables users to share product-related information across web pages. The system includes a client that executes on a user computer. The client interacts with a data server to provide user access to product-related information associated with products represented on web pages accessed by the user. The product-related information may include information submitted by other users via other instances of the client.

Abstract: A client executes in conjunction with a web browser on a user computer. The client interacts with a data server to provide user access to product-related information associated with products represented on web pages accessed by the web browser. The product-related information may include information submitted by other users via other instances of the client, such that users share product-related information across web pages.

Abstract: A meta-data generator is described for generating meta-data relating to at least one Web site, the meta-data identifying, for a Web site providing at least one Web page, identification of, for other Web sites, at least one Web page associated therewith having a selected relationship with the at least one Web site. The meta-data generator includes an information accumulation module, a meta-data generation module and a meta-data storage module. The information accumulation module accumulates Web page information associated with respective Web sites. The meta-data generation module uses the accumulated Web page information according to a selected meta-data generation methodology to generate said meta-data, and the meta-data storage module stores the meta-data generated by the meta-data generation module. Several meta-data generation methodologies are described, including a link (Web page identifier) analysis methodology, two Web page usage analysis methodologies; and a search results analysis methodology.