Abstract: A system and machine-implemented method for processing a social endorsement for an item. Structured data for a first item is received in association with a first webpage, the structured data for the first item defining properties of the first item that are specific to the first item. An indication of a social endorsement for the first item is received in association with the first webpage. In response to receiving the indication of the social endorsement, an item element corresponding to the first item is identified within a data structure. The data structure stores plural item elements, each item element including a description of the item and social endorsement information associated with the item. The social endorsement information associated with the identified item element is updated within the data structure, based on the received indication of the social endorsement for the first item.

Abstract: A system and method for combining endorsements in related webpages, the method including receiving an indication of an endorsement at a first webpage, incrementing a primary count of the first webpage in response to receiving the indication, determining if the first page is related to one or more other webpages, identifying the one or more other webpages related to the first page, if it is determined that the first page is related to one or more other webpages, incrementing a secondary count of the first webpage and the one or more other webpages if it is determined that the first page is related to one or more other webpages in response to receiving the indication and providing the secondary count for display at the one or more of the first webpage or the one or more other webpages.

Abstract: The subject technology discloses configurations for receiving an indication of user activity from a first user with respect to a post, wherein the post includes content shared by a second user, in response to receiving the indication, an activity post providing an indication of the user activity with respect to the post is created, the activity post including the content, and a set of users that the activity post is visible to are identified, the set of users comprising one or more users selected from users associated with the first user in a social graph, the activity post is provided for display to the set of users in response to the indication.