Abstract: Systems, methods, and non-transitory computer-readable media can determine that a broadcaster of a first live content stream has identified at least one user of a social networking system to join as co-broadcaster. A merged live content stream is published through the social networking system, the merged live content stream including the first live content stream of the broadcaster and a second live content stream associated with the at least one identified user. At least one notification is sent to one or more other users of the social networking system. The notification informs the one or more other users about the merged live content stream.

Abstract: Techniques are described that enable a user to share videos having dynamic overlays on a social networking system. In some examples, a server computing device may receive, at a first time from a first client device, a first video. For instance, the server computing device may begin receiving the first video after the first client device has concluded capturing the first video, but has not yet completed customizing the first video. The server computing device may receive, at a second time after the first time and from the first client device, a dynamic overlay including customizations to be applied to the first video. The dynamic overlay may be transmitted separately from the first video. In examples, the server computing device generates a second video by applying the dynamic overlay to the first video. The server computing device then provides the second video to a second client device.

Abstract: Systems, methods, and non-transitory computer-readable media can determine that a broadcaster of a first live content stream has identified at least one user of a social networking system to join as co-broadcaster. A merged live content stream is published through the social networking system, the merged live content stream including the first live content stream of the broadcaster and a second live content stream associated with the at least one identified user. At least one notification is sent to one or more other users of the social networking system. The notification informs the one or more other users about the merged live content stream.

Abstract: An online system transmits third-party content originating from a third-party system to a client device. The third-party content includes a pointer to a third-party application associated with the third-party system. When the client device receives an interaction with the third-party content from a user of the client device, the client device executes the third-party application and generates an attribution identifier from which the user's identity cannot be determined. The attribution identifier is transmitted to the online system. Subsequently, the client device determines information describing interactions by the user with the third-party application that is transmitted to the third-party system along with the attribution identifier.

Abstract: An online system transmits third-party content originating from a third-party system to a client device. The third-party content includes a pointer to a third-party application associated with the third-party system. When the client device receives an interaction with the third-party content from a user of the client device, the client device executes the third-party application and generates an attribution identifier from which the user's identity cannot be determined. The attribution identifier is transmitted to the online system. Subsequently, the client device determines information describing interactions by the user with the third-party application that is transmitted to the third-party system along with the attribution identifier.