1. A method, comprising: collecting from a first network-enabled device a device-specific identifier that uniquely identifies a personal mobile device, data representing user on-line activity related to an advertisement presented via the first network-enabled device while the personal mobile device is detected via a wireless communication to be in proximity to the first network-enabled device, and an identifier of the first network-enabled device, the device-specific identifier of the personal mobile device being acquired by the first network-enabled device via the wireless communication; using a server to identify a stored profile based on the device-specific identifier; analyzing, with the server, the data representing user on-line activity to select content to suit a stored profile, wherein the stored profile is based on user activity associated with the device-specific identifier of the personal mobile device; associating the data representing the user on-line activity of the first network-enabled device and the identifier of the first network-enabled device with the stored profile that was identified based upon the device-specific identifier of the personal mobile device, thereby associating the personal mobile device and the first network-enabled device with a user represented by the stored profile; and in response to receiving an indication of the personal mobile device being in proximity to a second network-enabled device, the indication resulting from the second network-enabled acquiring the device-specific identifier of the personal mobile device via short distance wireless communication between the second network-enabled device and the personal mobile device when the personal mobile device is in short distance wireless communication proximity to the second network-enabled device, making the content accessible to the server for presenting on the second network-enabled device.