19. The computer-readable medium of claim 18 , the operations further comprising identifying the user of the second device using content of the digital file, the nametag, and the identifiers.
19. The computer-readable medium of claim 18 , the operations further comprising identifying the user of the second device using content of the digital file, the nametag, and the identifiers. 20. The computer-readable medium of claim 19 , wherein identifying the user further comprises applying pattern recognition techniques to the content.