Abstract: In a digital social relationship network, a social network server computer stores a digital social network representation corresponding to a graph having nodes representing individuals or groups and links representing actual social relationships between the individuals or groups. The server computer obtains relationship-dependent information corresponding to a plurality of links of the graph, and embeds the relationship-dependent information in the digital social network representation stored in the social network server computer. The server computer interactively presents to a user of a client computer connected to the social network server computer a social network of the individuals or groups and the social relationships between the individuals or groups.

Abstract: An application program spans a plurality of digital social networks. The application program includes an inferred digital social network. Consent is obtained from a plurality of users of the digital social networks to participation in the inferred. digital social network. Information is automatically obtained from the digital social networks for the users, through a plurality of respective communication channels, which can be application program interfaces or covert or subliminal channels, The information includes link information between each of the users and other individuals in the digital social networks. The information is aggregated for the users to form the inferred digital social network, corresponding to a graph having nodes representing the users and the other individuals and having links between the nodes representing social relationships.

Abstract: In a digital social relationship network, a social network server computer stores a digital social network representation corresponding to a graph having nodes representing individuals or groups and links representing actual social relationships between the individuals or groups. The server computer obtains relationship-dependent information corresponding to a plurality of finks of the graph, and embeds the relationship-dependent information in the digital social network representation stored in the social network server computer. The server computer interactively presents to a user of a client computer connected to the social network server computer a social network of the individuals or group and the social relationships between the individuals or groups.

Abstract: A video content sharing network functions as an inferred digital social network. Consent is obtained from a plurality of users of at least one digital social network to participation in the video content sharing network. Information is automatically obtained from the digital social network for the users, through a plurality of respective communication channels, which can be application program interfaces or covert or subliminal channels. The information includes link information between each of the users and other individuals in the digital social network. Each of the users is enabled to share content including video content, to send and receive message information with other users, to view profile information of other users, and to view social contact information of other users, through the video content sharing network.

Abstract: An application program spans a plurality of digital social networks. The application program includes an inferred digital social network. Consent is obtained from a plurality of users of the digital social networks to participation in the inferred digital social network. Information is automatically obtained from the digital social networks for the users, through a plurality of respective communication channels, which can be application program interfaces or covert or subliminal channels. The information includes link information between each of the users and other individuals in the digital social networks. The information is aggregated for the users to form the inferred digital social network, corresponding to a graph having nodes representing the users and the other individuals and having links between the nodes representing social relationships.

Abstract: A computer-implemented method of controlling content includes receiving an input from the user and monitoring content in an application program or content exchanged between the application program and an operating system residing at the user's computer system. The method includes determining whether monitored content corresponds to a predetermined advertisement. If the monitored content corresponds to the predetermined advertisement, the predetermined advertisement is replaced with another predetermined advertisement based on the user input.