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: 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 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: 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: Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, are described for providing content. A method includes transmitting an audio content item that is presented to a user of a personal digital assistant through a speaker; receiving digital information that includes spoken information that was submitted through the personal digital assistant by the user and converted into the digital information, the received digital information including data specifying one or more other users with which the audio content item is to be shared; annotating the audio content item with an annotation including at least some of the digital information and data specifying that the user is the source of the annotation; and transmitting the audio content item and the annotation to the one or more other users with which the audio content is to be shared as specified by the digital information.

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: 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. A method includes: transmitting an audio content item that is presented to a user of a personal digital assistant through a speaker; receiving digital information that includes spoken information that was submitted through the personal digital assistant by the user and converted into the digital information, the received digital information including data specifying one or more other users with which the audio content item is to be shared; annotating the audio content item with an annotation including at least some of the digital information and data specifying that the user is the source of the annotation; and transmitting the audio content item and the annotation to the one or more other users with which the audio content is to be shared as specified by the digital information.

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 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. A method includes transmitting an audio content item that is presented to a user of a personal digital assistant through a speaker; receiving digital information that includes spoken information that was submitted through the personal digital assistant by the user and converted into the digital information, the received digital information including data specifying one or more other users with which the audio content item is to be shared; annotating the audio content item with an annotation including at least some of the digital information and data specifying that the user is the source of the annotation; and transmitting the audio content item and the annotation to the one or more other users with which the audio content is to be shared as specified by the digital information.

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: 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: 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, 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 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: 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: 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: 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.