Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting contact data for displaying representations of contacts for display to a user, the contacts being contacts of the user within a computer-implemented social networking service, generating a first social circle of the user, the first social circle comprising a first subset of contacts of the user within the social networking service and defining a first distribution for digital content, generating a second social circle of the user, the second social circle comprising a second subset of contacts of the user within the social networking service and defining a second distribution for digital content, and, in response to user input, providing the first social circle and the second social circle for selection by the user to define a distribution of digital content, the distribution comprising at least one of the first distribution and the second distribution.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting contact data for displaying representations of contacts for display to a user, the contacts being contacts of the user within a computer-implemented social networking service, generating a first social circle of the user, the first social circle comprising a first subset of contacts of the user within the social networking service and defining a first distribution for digital content, generating a second social circle of the user, the second social circle comprising a second subset of contacts of the user within the social networking service and defining a second distribution for digital content, and, in response to user input, providing the first social circle and the second social circle for selection by the user to define a distribution of digital content, the distribution comprising at least one of the first distribution and the second distribution.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting contact data for displaying representations of contacts for display to a user, the contacts being contacts of the user within a computer-implemented social networking service, generating a first social circle of the user, the first social circle comprising a first subset of contacts of the user within the social networking service and defining a first distribution for digital content, generating a second social circle of the user, the second social circle comprising a second subset of contacts of the user within the social networking service and defining a second distribution for digital content, and, in response to user input, providing the first social circle and the second social circle for selection by the user to define a distribution of digital content, the distribution comprising at least one of the first distribution and the second distribution.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting a content data set to a computing device for displaying digital content to an author user, the author user having authored the digital content, receiving user input from the author user, the user input corresponding to the digital content, and, in response to receiving the user input, transmitting first data and second data to the computing device for display to the author user, the first data comprising a number of contacts that are able to access the digital content and the second data indicating one or more relationships between the author user and the contacts.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting a content data set to a computing device for displaying content to a non-author user, receiving user input from the non-author user, the user input corresponding to the content, and, in response to receiving the user input, transmitting first data and second data to the computing device for display to the non-author user, the first data comprising a number of contacts associated with an author user, the author user having authored the content, the second data being a sub-set of the first data and comprising a number of contacts associated with the non-author user.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting contact data for displaying representations of contacts for display to a user, the contacts being contacts of the user within a computer-implemented social networking service, generating a first social circle of the user, the first social circle comprising a first subset of contacts of the user within the social networking service and defining a first distribution for digital content, generating a second social circle of the user, the second social circle comprising a second subset of contacts of the user within the social networking service and defining a second distribution for digital content, and, in response to user input, providing the first social circle and the second social circle for selection by the user to define a distribution of digital content, the distribution comprising at least one of the first distribution and the second distribution.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting, within a web page, a graphical representation of a content sharing interface including at least one button icon, receiving user input to the button icon, in response to the user input, expanding the content sharing interface to include an expanded content input area and a distribution interface, the expanded content input area displaying a graphical representation of digital content that is to be distributed, receiving user input to the distribution interface, the user input indicating contact(s) to which the digital content is to be distributed, in response to receiving the user input, displaying icon(s) within the distribution interface, the icon(s) being a graphical representation of the contact(s), and transmitting a post data set including digital content data and distribution data to a server computing system.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting a content data set to a computing device for displaying content to a non-author user, receiving user input from the non-author user, the user input corresponding to the content, and, in response to receiving the user input, transmitting first data and second data to the computing device for display to the non-author user, the first data comprising a number of contacts associated with an author user, the author user having authored the content, the second data being a sub-set of the first data and comprising a number of contacts associated with the non-author user.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting a content data set to a computing device for displaying digital content to an author user, the author user having authored the digital content, receiving user input from the author user, the user input corresponding to the digital content, and, in response to receiving the user input, transmitting first data and second data to the computing device for display to the author user, the first data comprising a number of contacts that are able to access the digital content and the second data indicating one or more relationships between the author user and the contacts.