Software authenticates a first user of a first mobile device and a second user of a second mobile device. Each of the mobile devices includes a video capturing device and each user agrees or has previously agreed to share video data captured by the user with other authenticated users. The software determines whether the first mobile device is located proximate to the second mobile device. Then the software receives video data captured by the second mobile device and transmits the video data to the first mobile device for display along with an annotation indicating the location of the second mobile device relative to the first mobile device, if the first mobile device is proximate to the second mobile device. The software receives an indication from the first mobile device that at least some of the video data is to be indexed in a profile associated with the first user.