Abstract: An advertising unit is intended for display on a web page. The advertising unit has a size and a position relative to other objects within the web page. An identifier associated with an instance of the advertising unit displayed on the web page is generated. Upon receiving an indication that the web page has been loaded in the browser, engagement tracking module identifies the advertising unit within the page based on the size of the advertising unit, the position relative to other objects within the web page, and the identifier and tracks data regarding engagement with the advertising unit by a user of the browser.

Abstract: A system and method for enabling information associations which parses objects contained within a document such a Web page, in order to form a list of “metalink” objects within the document for which related information may be available. Visual indications of metalink objects within the document may be provided automatically, or in response to a user action requesting such indications be made, and may include any kind of modification to the visual display of the metalink objects or to the cursor as it is moved over or near the metalink objects. User selection of a metalink object, for example clicking on the display of a metalink object, is further detected. In response to such user selection of a metalink object, a database is searched for information related to the selected metalink object, including pointers or links to other documents. The search results (“metadata”) are then displayed, for example in a pop-up window.