Azureus is a powerful BitTorrent protocol client. It comes bundled with many invaluable features for both beginners and advanced users, such as multiple torrent support, speed limiting, fast resuming and more.
The BitTorrent protocol is a “peer-to-peer” way to distribute files on the internet. It was designed to move large amounts of data to many users without the costly server space and bandwidth that a distributor would usually have to pay for. Users who download a file then become a new source for transmitting that data.