Computer hardware; computer hardware, downloadable software and computer peripherals for communication between multiple computers and between computers and local and global computer networks; computer hardware, downloadable software and computer peripherals for communication between multiple devices and between devices and local and global computer networks; computer networking hardware; computer hardware and downloadable computer software for the reproduction, processing and streaming of audio, video and multimedia content; computer hardware and  downloadable software for controlling the operation of audio and video devices and for viewing, searching and/or playing audio, video and multimedia content; downloadable computer software for use in organizing, transmitting, receiving, manipulating, optimizing, playing and reviewing text, data, image, audio, video and multimedia files; downloadable software for connecting wireless devices, mobile telephones, handheld digital electronic devices, computers, laptop computers, computer network users, global computer networks; downloadable database synchronization software; downloadable computer software for use in network server sharing; downloadable local and wide area networking software; downloadable computer software for navigating and searching a global computer information network; computer hardware for high-speed processing and storage of data using multiple CPUs; communications servers; computer hardware for wireless content delivery; computer hardware for upload, storage, retrieval, download, transmission and delivery of digital content; computer hardware for communicating audio, video, and data between computers via a global computer network, wide-area computer networks, and peer-to-peer networks