LimeWire is the world's most popular peer-to-peer file-sharing program. With over 50 million unique monthly users, the software is downloaded hundreds of thousands of times every day and boasts millions of active users at any given moment. LimeWire uses the BitTorrent protocol and the Gnutella network to provide unparalleled searches and download speed to the user. As always, LimeWire takes the security of its users very seriously and offers the world's most technologically advanced peer-to-peer software.
Link for more information: http://www.limewire.com/en