Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: Techniques to increase engagement with a social networking system. In one embodiment, activities are prioritized based on relatedness to a user. References associated with at least a portion of the prioritized activities are created. The references are categorized into a plurality of types. The reference types may include notifications, friend identifications, and top stories. The references are embedded in digest communications for the user. Descriptive information about the activities are omitted from the digest communications. Digest communications for the user are provided during a time period when the user is not engaged with the social networking system. Notifications for a user are ceased when a level of engagement of the user with the social networking system is less than a threshold value.

Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: Techniques to increase engagement with a social networking system. In one embodiment, an engagement level of a user with a social networking system is monitored. A low engagement user type associated with the user is identified from a plurality of low engagement user types. It is determined whether the engagement level of the user is less than a threshold. If so, a communication is provided for the user based on the low engagement user type associated with the user. The communication may be a notification or a digest communication.

Abstract: A method and system are provided for web search customization and web site rating. The system receives user input web sites, stores the web sites in a database, and groups them into user-specified categories. The system further allows users to select one or more web sites for customizing web search and querying the preselected sites using user input keywords. The system further provides the users with options to query a plurality of search engines. All web sites stored within the system are rated in response to the user operations. Each web site has at least a global rating indicating the rating within the system, a category rating indicating the rating within a given category, and a keyword rating indicating the rating for a given keyword. The system provides the users with a list of recommended web sites based on the web sites' ratings.

Abstract: Techniques to optimize messages sent to a user of a social networking system. In one embodiment, information about the user may be collected by the social networking system. The information may be applied to train a model for determining likelihood of a desired action by the user in response to candidate messages that may be provided for the user. The social networking system may provide to the user a message from the candidate messages with a selected likelihood of causing the desired action.

Abstract: A method and system are provided for web search customization and web site rating. The system receives user input web sites, stores the web sites in a database, and groups them into user-specified categories. The system further allows users to select one or more web sites for customizing web search and querying the preselected sites using user input keywords. The system further provides the users with options to query a plurality of search engines. All web sites stored within the system are rated in response to the user operations. Each web site has at least a global rating indicating the rating within the system, a category rating indicating the rating within a given category, and a keyword rating indicating the rating for a given keyword. The system provides the users with a list of recommended web sites based on the web sites' ratings.

Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: Verifying the identity of a person claiming to be represented by a picture by way of providing a string of text (randomly generated or generated by another person seeking verification of same) to be recited by the claimant. The string of text is recited in a video which is received by an intermediary server at a network node, or by a person seeking such verification. Automated processes may be utilized to compare the audio and video received to the picture and string of text sent. Further, comparisons to previously received audio, video, and strings of text, as well as the same available from third parties, may be used to determine fraud attempts. Viewers of the person's profile may also vote on the authenticity of a profile, thereby raising or lowering a certification confidence level, with their votes weighted more heavily towards those who have high confidence levels.

Abstract: A method and system are provided providing electronic communications between users in a similar geographic location. Mobile devices determine geographic location information based on signals received from external devices, such as GPS satellites or cell sites, and web browsers determine geographic location using external devices or third party software, such as Google Loader, or based on the IP address of the computer running the web browser. The system receives geographic location information from a mobile device or web browser in addition to a user-input message. The system distributes the message to users of the system with geographic locations within a predetermined distance from the geographic location that the message was input.

Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: Techniques to optimize messages sent to a user of a social networking system. In one embodiment, information about the user may be collected by the social networking system. The information may be applied to train a model for determining likelihood of a desired action by the user in response to candidate messages that may be provided for the user. The social networking system may provide to the user a message from the candidate messages with a selected likelihood of causing the desired action.

Abstract: Techniques to optimize messages sent to a user of a social networking system. In one embodiment, information about the user may be collected by the social networking system. The information may be applied to train a model for determining likelihood of a desired action by the user in response to candidate messages that may be provided for the user. The social networking system may provide to the user a message from the candidate messages with a selected likelihood of causing the desired action.

Abstract: Techniques to optimize messages sent to a user of a social networking system. In one embodiment, information about the user may be collected by the social networking system. The information may be applied to train a model for determining likelihood of a desired action by the user in response to candidate messages that may be provided for the user. The social networking system may provide to the user a message from the candidate messages with a selected likelihood of causing the desired action.

Abstract: Techniques to optimize messages sent to a user of a social networking system. In one embodiment, information about the user may be collected by the social networking system. The information may be applied to train a model for determining likelihood of a desired action by the user in response to candidate messages that may be provided for the user. The social networking system may provide to the user a message from the candidate messages with a selected likelihood of causing the desired action.

Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: Verifying the identity of a person claiming to be represented by a picture by way of providing a string of text (randomly generated or generated by another person seeking verification of same) to be recited by the claimant. The string of text is recited in a video which is received by an intermediary server at a network node, or by a person seeking such verification. Automated processes may be utilized to compare the audio and video received to the picture and string of text sent. Further, comparisons to previously received audio, video, and strings of text, as well as the same available from third parties, may be used to determine fraud attempts. Viewers of the person's profile may also vote on the authenticity of a profile, thereby raising or lowering a certification confidence level, with their votes weighted more heavily towards those who have high confidence levels.

Abstract: In one embodiment, a method includes receiving a message associated with a user at an information exchange system. At least one correspondent associated with the user may be determined, based on the message. A social connection between the user and the at least one correspondent may be assessed with respect to a social-networking system. The information exchange system may provide an interface for display to the user, the interface comprising information associated with the message. If the social connection is confirmed, the interface may include social-networking information associated with the at least one correspondent. Otherwise, the interface may provide functionality to create a social connection between the user and the at least one correspondent with respect to the social-networking system.

Abstract: A method and system are provided for web search customization and web site rating. The system receives user input web sites, stores the web sites in a database, and groups them into user-specified categories. The system further allows users to select one or more web sites for customizing web search and querying the preselected sites using user input keywords. The system further provides the users with options to query a plurality of search engines. All web sites stored within the system are rated in response to the user operations. Each web site has at least a global rating indicating the rating within the system, a category rating indicating the rating within a given category, and a keyword rating indicating the rating for a given keyword. The system provides the users with a list of recommended web sites based on the web sites' ratings.