Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, are described for providing content. A method includes: receiving a request for an advertisement to be displayed in a slot associated with a third-party content site; identifying a relevant advertisement to be provided in the slot; determining information to be included in an annotation associated with the advertisement, the annotation including customized information related to a user or a group associated with the user that is to be presented along with the advertisement; providing the advertisement responsive to the request including providing the annotation along with a control for re-publishing the advertisement along with the relevant advertisement; receiving user input selecting the control and designating the advertisement for re-publishing; and targeting additional content to the user or a group associated with the user based on the received user input.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing content. A method includes receiving a request for an advertisement to be displayed in a slot associated with a third-party content site; identifying a relevant advertisement to be provided in the slot; determining information to be included in an annotation associated with the advertisement, the annotation including customized information to be presented along with the advertisement; providing the advertisement responsive to the request including providing the annotation along with a control for re-publishing the advertisement along with the relevant advertisement; receiving user input selecting the control and designating the advertisement for re-publishing to a group, the group being designated by the user; and targeting additional content to the group based on the received user input.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing a method that includes receiving an indication from a user to promote an item that is included in an activity stream associated with the user, the activity stream being presented in a social context by a social application; receiving a request for an advertisement; determining the item is responsive to the request; determining one or more advertisements responsive to the request; ranking the item and the one or more advertisements; and providing the item in response to the request rather than the one or more advertisements and based at least in part on the rankings.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, are described for providing content to a user. A method comprises: receiving an update for publication to an activity stream associated with the user, the activity stream being produced by a social application executing on one or more server computers and being published for consumption by one or more subscribers to the social application that have been designated by the user as being authorized to receive the update; and distributing additional content to the user based on the received user update.

Abstract: In general, a method for providing content to a user includes providing a content item to a user responsive to a received request. The content item is displayed to the user in a slot associated with a third party content site. The content item includes a first annotation providing information for or about re-publishing the content item. A request is received from the user to follow a content provider associated with the content item. The user is designated as being interested in updated content from the content provider. Designating the user includes presenting information about the user to one or more of the content provider or a social application that includes a content provider presence so as to allow for updates associated with the content provider to be followed by the user.

Abstract: The subject matter of this specification can be embodied in, among other things, a method that receives at a server a first request to rebroadcast a first sponsored content item that was displayed on the social network to the first user to a second user. A second request to display at least one sponsored content item to the second user when the second user accesses an electronic document associated with the social network is received at the server. The first sponsored content item is retrieved for rebroadcast from one or more sponsored content items indicated for rebroadcast to the second user. The first sponsored content item is output to the second user of the social network in response to the second request to display and without requiring the second user to select the first sponsored content item for display.

Abstract: In general, a method for providing content to a user includes providing a content item to a user responsive to a received request. The content item is displayed to the user in a slot associated with a third party content site. The content item includes a first annotation providing information for or about re-publishing the content item. A request is received from the user to follow a content provider associated with the content item. The user is designated as being interested in updated content from the content provider. Designating the user includes presenting information about the user to one or more of the content provider or a social application that includes a content provider presence so as to allow for updates associated with the content provider to be followed by the user.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, are described for providing content. A method includes: receiving a request for an advertisement to be displayed in a slot associated with a third-party content site; identifying a relevant advertisement to be provided in the slot; determining information to be included in an annotation associated with the advertisement, the annotation including customized information related to a user or a group associated with the user that is to be presented along with the advertisement; providing the advertisement responsive to the request including providing the annotation along with a control for re-publishing the advertisement along with the relevant advertisement; receiving user input selecting the control and designating the advertisement for re-publishing; and targeting additional content to the user or a group associated with the user based on the received user input.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing content. A method includes receiving a request for an advertisement to be displayed in a slot associated with a third-party content site; identifying a relevant advertisement to be provided in the slot; determining information to be included in an annotation associated with the advertisement, the annotation including customized information to be presented along with the advertisement; providing the advertisement responsive to the request including providing the annotation along with a control for re-publishing the advertisement along with the relevant advertisement; receiving user input selecting the control and designating the advertisement for re-publishing to a group, the group being designated by the user; and targeting additional content to the group based on the received user input.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, are described for providing content to a user. A method comprises: receiving an update for publication to an activity stream associated with the user, the activity stream being produced by a social application executing on one or more server computers and being published for consumption by one or more subscribers to the social application that have been designated by the user as being authorized to receive the update; and targeting additional content to the user based on the received user update.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing a method that includes receiving an indication from a user to promote an item that is included in an activity stream associated with the user, the activity stream being presented in a social context by a social application; receiving a request for an advertisement; determining the item is responsive to the request; determining one or more advertisements responsive to the request; ranking the item and the one or more advertisements; and providing the item in response to the request rather than the one or more advertisements and based at least in part on the rankings.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing a method for re-publishing content that is provided by a content publisher to a user. A method includes providing an advertisement for display to a user in a slot, the advertisement including a first annotation providing information for or about re-publishing the advertisement; receiving a request to re-publish the advertisement to one or more individuals or groups associated with the user in a social context; and providing the advertisement as part of an activity stream for a social application, including presenting the advertisement in the activity stream for the user.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing a user interaction point on a user device in conjunction with content that is provided by a content publisher. A method includes receiving a request for an advertisement to be displayed in a slot associated with a third-party content site; identifying a relevant advertisement to be provided in the slot; determining information to be included in an annotation associated with the advertisement, the annotation including customized information related to the user or a group associated with the user; and providing the advertisement responsive to the request including providing the annotation for presentation along with the relevant advertisement.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing a user interaction point on a user device in conjunction with content that is provided by a content publisher. A method includes receiving a request for an advertisement to be displayed in a slot associated with a third-party content site; identifying a relevant advertisement to be provided in the slot; determining information to be included in an annotation associated with the advertisement, the annotation including customized information related to the user or a group associated with the user; and providing the advertisement responsive to the request including providing the annotation for presentation along with the relevant advertisement.

Abstract: In general, one aspect of the subject matter disclosed in this specification can be embodied in a method for inviting a plurality of candidate badge holders to become badge holders. Criteria are defined for being a badge holder. Information is provided, to a verification system, for verifying that badge holders are authorized, the information comprising the criteria. An indication is received of issuance of a badge to a badge holder from the verification system. One or more reports are received related to activities of badge holders from a publication system that exposes badges associated with the badge holders.

Abstract: In general, one aspect of the subject matter disclosed in this specification can be embodied in a method for receiving, from a sponsor, verification information for enabling verification of candidate badge holders. A request for verification and issuance of a badge is received from a candidate badge holder, the request including request information to verify the candidate badge holder. The candidate badge holder is verified using the verification information and the request information. The badge is issued to the candidate badge holder. The candidate badge holder is designated as a badge holder. The badge is stored for the badge holder. A controlled space is provided in a user interface in a domain for displaying the badge. The badge is presented in the controlled space.

Abstract: The subject matter of this specification can be embodied in, among other things, a method that receives at a server a first request to rebroadcast a first sponsored content item that was displayed on the social network to the first user to a second user. A second request to display at least one sponsored content item to the second user when the second user accesses an electronic document associated with the social network is received at the server. The first sponsored content item is retrieved for rebroadcast from one or more sponsored content items indicated for rebroadcast to the second user. The first sponsored content item is output to the second user of the social network in response to the second request to display and without requiring the second user to select the first sponsored content item for display.