Thanks to CD Media World for this data.

Aimster	Aimster integrates with your instant messaging service to provide you with a full sharing tool. With Aimster you can exchange files on AOL, Gnutella and Microsoft Networking.
Audiogalaxy	Downloadable beta version application, relatively mature player in the MP3-swapping game.
Bearshare	BearShare is a Windows file sharing program that lets everyone in the world share files. The program is built on Gnutella technology.
CuteMX	CuteMX has a powerful search engine that delivers search results faster than any other program.
Deathnap	DeathNap is a network of Napster servers linked together.
Direct Connect	Direct Connect allows users to share multiple directories from their local and mapped disks with other users over a TCP/IP network. No passwords are required.
Downloadcommunity/ Yo!NK	File-sharing program that's still in development.
Edonkey2000	With eDonkey2000, users have the ability to search all the files being shared anywhere on the eDonkey2000 network, without relying on a central server.
Espra	Espra, facilitates the trading of MP3 files and, tweaking the major record labels, allows users to donate money directly to artists.
Farsite	Farsite is a serverless, distributed file system that does not assume mutual trust among the client computers on which it runs.
Fileangel	FileAngel is an open source project designed to allow file sharing across the internet.
Filenavigator	Filenavigator is a free Napster clone for the Windows95/98/NT/2000 platform. It not only allows the sharing of multiple filetypes, but compensates the artists.
Filepool	File pool uses ezAttach. Your files are always safe and secure and ezAttach lets you easily share fun stuff, important stuff, anything.
Filerogue	The File Rogue Client allows users to create a catalog of files on their computer that is made available to other users on the File Rogue Network.
Filetopia	Filetopia is a free communications software that includes: instant messaging, chat, e-mail, file sharing with search engine, online friends list and message boards.
Friedcat	Friedcat provides users with N-Tella. N-Tella is a Gnutella clone aimed at ease of use.
Furi	Furi is a Gnutella protocol-compatible Java program that can participate in the Gnutella network.
Gigabeat	Gateway to all things music on the web. Songs, new artists and radio stations.
Gnucache	GnuCache connects to a gnutella host and listens to the pongs that travel over the network.
Gnumm	Gnumm is file sharing software that allows you to connect to the Open Napster, Napster and Gnutella networks at the same time and download from any of these services.
Gnotella	Gnotella is a clone of Gnutella, a distributed real time search and file sharing program. Gnotella is for the Win32 environment and offers extra benefits such as multiple searches.
Gnutella	Semi-official home of Gnutella file-sharing software and information, including tools for developers.
Gnutmeg	Gnutmeg is a peer-to-peer distributed file sharing system like Gnutella. It is similar to Napster, but there is no central server.
Gnutelliums	Gnutelliums is a comprehensive directory of Gnutella downloads/clients for Windows, Linux/Unix, Java, and Macintosh.
Gotchport!	GotchaPort! allows users to lend music, pictures and documents to friends securely and easily.
Groovenetworks	Groove Networks provides a solution platform and application for peer-to-peer internet interaction.
Hotline Communication	Hotline Connect enables users to easily create a personal interactive Internet community on their own terms.
Imesh	Service enabling users to find and copy music, video and image files on each others' computers.
Inoize	iNoize.com is an internet jukebox and allows users to share their music with each other. Users can create custom playlists, store them and then play them back at anytime.
Jungle Monkey	Jungle Monkey is a distributed file sharing program. You join channels where people offer files for download. You can also offer your own files and create your own channels as well.
Kazaa	KaZaA is a media community, where community members can share their media files (audio, video, images and documents) with each other.
Konspire	A new distributed file-sharing system featuring fast, exhaustive searches and modest network bandwidth requirements. Written in Java 1.1 (with Swing GUI) for platform independence.
Limewire	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.
Mynapster	The MyNapster Network is running the latest version of OpenNap which extends the Napster protocol to allow sharing of any type and to link servers.
Myplay	Myplay is a new service that gives Internet users an easier way to store, organize, download and share their MP3 and other digital music files.
Mojonation	Mojo Nation is a worldwide system that enables users to publish and share data like text, sounds, moving and still pictures and other binary files.
Mp3exchanger	Program providing Internet users a platform for exchanging files with other users online.
Musiccity	MusicCity.com Network allows users to share content files with one another by either using other file sharing client programs.
Napigator	Napigator helps users find almost all the internet audio online they want, giving them an up to date status of all nap servers on various networks.
Napster	File-sharing service that's being sued for copyright infringement.
Netbrilliant	Netbrilliant is an environment in which you can interact with the Internet in an intuitive, simple, and very powerful way. You will be surprised at how much Netbrilliant opens the web up to you.
Newtella	Newtella focuses on MP3 files and so is a subset of the gnutella network. There is no central server since Newtella users act both as "client" and "server."
Ohaha	Ohaha is an open-source initiative to create a new suite of protocols that enable file sharing in an entirely decentralized way and make them accessible to users as part of an easy-to-use program.
Onshare	Remotely access files from any internet browser for sharing and trading of files from a platform directly from their computers, without a central server.
Opennap	OpenNap extends the Napster protocol, that facilitates sharing files between users, to allow sharing of any media type, and the ability to link servers together.
Percolator	Web-based mp3 search engine that improves upon Napster's speed, music vault and cavalier attitude towards musicians.
Pointera	The Pointera Sharing Engine is the only service to let portals and content site users share legitimate files through a standard Web browser.
Popularpower	Popularpower works in the background, activating when users are not using their computers and getting in touch with its site.
Punchwebgroups	Punch WebGroups is web-based file sharing and collaboration software that allows users to securely access, share and automatically update any file using just their web browser.
Rapigator	Rapigator hooks users right into the OpenNap servers, which are not dependent on Napster.
RiffShare	MP3 search tool.
Scour	Audio-video search service, pointing users to online radio, film and image files in addition to MP3's.
Songspy	SongSpy is a music sharing program designed from the ground up. SongSpy rewards its users with prizes for sharing music via its Karma System.
Spinfrenzy	Service offering free Web pages and e-mail in addition to MP3 files organized by genre.
Swapstation	SwapStation offers a central meeting place for people who want to trade items in an environment that is safe, clean and legal.
Swaptor	Swaptor is a new tool that connects all user’s computers together to enable the sharing of files.
Tripnosis	Tripnosis is a file sharing system that allows users to share and search for any type of file they desire.
Winmx	WinMX is a file-sharing program that allows users to simultaneously connect to many established networks based on the Napster protocol.
Toadnode	Toadnode is a computer program that allows you to share and download files with internet users all over the world.
WiredPlanet	WiredPlanet’s streaming music stations are the fast and easy way to listen to music on the net.
Zden	Zden provides a platform to sell and expose their original content/work in files and, at the same time, provides buyers of digital copyrighted material with a large catalogue of original content/work in files.