Abstract: A computer-implemented method may include receiving, in a messaging client executing on a first client device, a location request from a second client device; determining whether the second client device is authorized to send the location request to the first client device; starting a timer in response to receiving the location request when the second client device is authorized; and sending a location of the first client device to the second client device when the timer expires. Other embodiments are described and claimed.

Abstract: Systems, methods, and non-transitory computer-readable media can receive information describing one or more viewed media content items from a plurality of computing devices. Each computing device can communicate with the computing system over a persistent network connection. The information describing the one or more viewed media content items received from the plurality of computing devices can be aggregated. The aggregated information can be used to re-rank a set of media content items for one or more users.

Abstract: A computer-implemented method may include receiving, in a messaging client executing on a first client device, a location request from a second client device; determining whether the second client device is authorized to send the location request to the first client device; starting a timer in response to receiving the location request when the second client device is authorized; and sending a location of the first client device to the second client device when the timer expires. Other embodiments are described and claimed.

Abstract: A computer-implemented method may include receiving, in a messaging client executing on a first client device, a location request from a second client device; determining whether the second client device is authorized to send the location request to the first client device; starting a timer in response to receiving the location request when the second client device is authorized; and sending a location of the first client device to the second client device when the timer expires. Other embodiments are described and claimed.

Abstract: A computer-implemented method may include receiving, in a messaging client executing on a first client device, a location request from a second client device; determining whether the second client device is authorized to send the location request to the first client device; starting a timer in response to receiving the location request when the second client device is authorized; and sending a location of the first client device to the second client device when the timer expires. Other embodiments are described and claimed.

Abstract: Methods, systems, computer-readable media, and apparatuses for interactive challenges for accessing a resource are presented. In some embodiments, a method may include presenting a challenge requesting the performance of a specific motion. The method may also include capturing sensor data generated by one or more sensors associated with a mobile device as a result of one or more actions performed by a user in response to the challenge. The method may additionally include determining whether the specific motion was performed by comparing the captured sensor data to reference data associated with the requested specific motion. The method may further include indicating whether the challenge was satisfied based at least in part on the determining.

Abstract: A computer-implemented method may include receiving, in a messaging client executing on a first client device, a location request from a second client device; determining whether the second client device is authorized to send the location request to the first client device; starting a timer in response to receiving the location request when the second client device is authorized; and sending a location of the first client device to the second client device when the timer expires. Other embodiments are described and claimed.

Abstract: An electronic device identifies a segment of source code in a second version of a software program that has changed relative to a corresponding segment in a first version of the program. The first version was written by a first author and the segment of source code in the second version has been changed by a second author. Attribution values for the first and second authors are determined based at least in part on one or more differences between the segment in the second version and the corresponding segment in the first version. The attribution values for the first and second authors indicate degrees of contribution by the first and second authors for the segment in the second version. The electronic device displays or sends instructions for displaying indicia of the attribution values for the first and second authors concurrently with the segment in the second version.

Abstract: Techniques for messaging using replication of a client database are described.

Abstract: An electronic device identifies a segment of source code in a second version of a software program that has changed relative to a corresponding segment in a first version of the program. The first version was written by a first author and the segment of source code in the second version has been changed by a second author. Attribution values for the first and second authors are determined based at least in part on one or more differences between the segment in the second version and the corresponding segment in the first version. The attribution values for the first and second authors indicate degrees of contribution by the first and second authors for the segment in the second version. The electronic device displays or sends instructions for displaying indicia of the attribution values for the first and second authors concurrently with the segment in the second version.

Abstract: An electronic device accesses a comparison of at least a portion of a second version of a software program to a corresponding portion of a first version of the software program. The device determines an attribution value for a first author based in part on one or more differences between a respective segment of source code in the second version of the software and a corresponding segment of source code in the first version of the software, and determines an attribution value for a second author based in part on one or more differences between the respective segment of source code in the second version of the software and the corresponding segment of source code in the first version of the software. The device displays or sends instructions for displaying indicia of at least one attribution value with the respective segment of source code in the second version.

Abstract: An electronic device accesses a comparison of at least a portion of a second version of a software program to a corresponding portion of a first version of the software program. The device determines an attribution value for a first author based in part on one or more differences between a respective segment of source code in the second version of the software and a corresponding segment of source code in the first version of the software, and determines an attribution value for a second author based in part on one or more differences between the respective segment of source code in the second version of the software and the corresponding segment of source code in the first version of the software. The device displays or sends instructions for displaying indicia of at least one attribution value with the respective segment of source code in the second version.