Vuze, formerly Azureus, is an excellent file sharing. The interface is neat and clear and comes complete with many functions. The strength is the flexibility of the program with plug-ins can be downloaded from official website and the ability to publish and share high quality content (audio, video and games). You can also add RSS tool, automate some operations and check the status of your downloads through a WebUI. Requires installation of the J2SE Java Runtime Environment or higher.