Abstract: Automated device discovery of pairing-eligible devices for authenticating an unidentified user of a computing device is provided. When the user initiates a login on the computing device on which the user's identity is not known, an automated pairing-eligible device discovery authentication system interrogates a resource (e.g., subnetwork router, calendaring server) for identifying pairing-eligible devices that may be used as a second factor for authentication. A list of the pairing-eligible devices is presented to the user on the computing device. Upon selection of a pairing-eligible device to use as a second factor to verify the user's identity, the user's identity is determined, and a notification is sent to the selected pairing-eligible device for enabling the user to verify his/her identity using a second factor. Upon completion of an authentication challenge on the selected pairing-eligible device, authentication of the user is completed, and a signed token is sent to the computing device.

Abstract: Automated device discovery of pairing-eligible devices for authenticating an unidentified user of a computing device is provided. When the user initiates a login on the computing device on which the user's identity is not known, an automated pairing-eligible device discovery authentication system interrogates a resource (e.g., subnetwork router, calendaring server) for identifying pairing-eligible devices that may be used as a second factor for authentication. A list of the pairing-eligible devices is presented to the user on the computing device. Upon selection of a pairing-eligible device to use as a second factor to verify the user's identity, the user's identity is determined, and a notification is sent to the selected pairing-eligible device for enabling the user to verify his/her identity using a second factor. Upon completion of an authentication challenge on the selected pairing-eligible device, authentication of the user is completed, and a signed token is sent to the computing device.

Abstract: In embodiments, various technologies for notifying users of a social network service of updates to services external to the social network service by members of the social network are described. An indication that a member of a social network service made an update to an external service can be received. Then, at least one additional member associated with the member in the social network service can be notified of the update to the external service. The external service may include typical web services, such as a blogging service, a video sharing service, or a photo sharing service.

Abstract: Various technologies for notifying users of a social network service of updates to services external to the social network service by members of the social network. The external service may be a typical web service, such as blogging, and video and photo sharing services. In one implementation, a member of a social network may register the external service with the social network service. Thereinafter, updates that the user makes on the external service may trigger notifications to members of the user's social network.

Abstract: Various technologies for notifying users of a social network service of updates to services external to the social network service by members of the social network. The external service may be a typical web service, such as blogging, and video and photo sharing services. In one implementation, a member of a social network may register the external service with the social network service. Thereinafter, updates that the user makes on the external service may trigger notifications to members of the user's social network.