A first type of processor-based device, such as a personal computer functioning as a host and containing digital media files, may wirelessly communicate with a second type of processor-based device or appliance, such as a digital picture frame (DPF). Upon request and/or at periodic intervals, the host may transmit menu items and/or media files to the DPF. Responsive to user choices entered at the DPF and transmitted to the host, the host may transmit further menu items and/or media files to the DPF. Methods of polling and registering one or more DPFs by a host, of retrieving media files by a host from the Internet satisfying user-specified search criteria, and of uploading media files from a DPF to a host, are also described, in addition to a network and a machine-accessible medium.