LimeWire is a software package which enables individuals to search for and share computer files with anyone on the Internet. LimeWire is compatible with the Gnutella file-sharing protocol and can connect with anyone else running Gnutella-compatible software. It acts as both a client and a server, is Java based, and very customizable.  

The Gnutella network is a file sharing network for any types of files. Limewire features network searches for many types of metadata, automated requery for file hashes, and multiple simultaneous (swarm) download of files. Limewire also features supernodes, which shield the average Gnutella network client from most network traffic.

Limewire Basic is FREE while the professional version is $21.95.

Latest Version:  4.16

System Requirements: 256 MB RAM and a live connection to the internet.

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Key Features:

• Windows, Mac and Linux compatible
• Built-in media player
• International versions
• No spyware, adware, or bundled software
• iTunes Integration.
  Windows and Mac users can now take advantage of LimeWire's iTunes integration.
• Easy to use Search drill down results.
  Searches in LimeWire now immediately display information that fully describes files.
• Firewall to Firewall Transfers.
  Since about 60% of users are currently firewalled, this feature greatly increases the amount of content on the network.
• BitTorrent Support Built-In
  Many ways to get files -- all in one application!
• Proxy support.
  Users can now use web proxies to route their downloads to protect their identity.