Swap and Play
- Social network to help share movies, games and music among friends, by borrowing their legal physical copies. Provides listing and searches of friends' collections.
- http://www.swapandplay.com

NapMX
- Allows users to add OpenNap and SlavaNap servers to WinMX servers list.
- http://speed47.chez-alice.fr/napmx/index.php

MLDonkey
- Multi-platform, multi-protocol client. Includes support for eDonkey2000, Overnet, BitTorrent, Gnutella and Fasttrack, and is written in Objective Caml.
- http://mldonkey.sourceforge.net

Furthur Network
- Network for sharing legally traded live music in MP3 and SHN formats.
- http://www.furthurnet.org/

OpenP2P.com
- O'Reilly Network's source for Peer-to-Peer (P2P) developer news and information. Topics include Napster, File-Sharing, Collaboration, Freenet, Gnutella, and P2P applications. Provides essential peer-to-peer articles and resources.
- http://www.openp2p.com

Filetopia
- File sharing tool with public key encryption, instant messages, chat, free e-mail, message boards and file collection organizer.
- http://host.filetopia.com/ft/index.htm

GNUnet
- Free (GPL) peer-to-peer framework of the GNU project with a focus on anonymous file-sharing. Works under Linux, BSD, OS X and Windows.
- http://gnunet.org/

The Circle
- Decentralized, highly scalable P2P application. Features file sharing, instant messaging, IRC style chat and trust based news.
- http://thecircle.org.au/

Zultrax
- A peer-to-peer file sharing client running on both the Gnutella network and its own encrypted network.
- http://www.zultrax.com

The Poisoned Project
- A free, open source file sharing application for Mac OS X.
- http://gottsilla.net/

KCeasy
- Open source Windows frontend for giFT. Download, FAQ and forum.
- http://kceasy.com/

Soulseek
- Free file sharing application. News, forums, FAQ and tutorials.
- http://www.slsknet.org/

Acquisition
- Open source peer-to-peer file sharing program for OS X. Features list, support forum. Mac OS 10.2 or higher.
- http://www.acquisitionx.com/

Morpheus
- Multi-network file-sharing client with features including chat, multiple media types, and multisource downloading.
- http://www.morpheus.com

Shareaza
- Open source multi-network P2P client for Windows.
- http://www.shareaza.com/

Piolet
- Music file sharing application supporting text and voice chat, multi-source MP3 and ogg downloads, and a built-in media player.
- http://www.piolet.com

WASTE
- Software and protocol enabling secure distributed communication and file sharing for small trusted groups of users.
- http://waste.sourceforge.net

Mute File Sharing
- Multiplatform peer-to-peer file sharing network designed to maintain users' anonymity. Mute is free, open source software for multiple operating systems.
- http://mute-net.sourceforge.net

Gnomoradio
- Music sharing, playback, and recommendation program for Creative Commons licensed songs. Gnomoradio is free, open source software for Linux/UNIX systems.
- http://gnomoradio.org

The Ballad Free File Sharing Network
- Allow users of several file sharing programs to connect to their network of servers to search for and download items in a P2P environment.
- http://www.balladp2p.com/

Vladd44.com
- BitTorrent and WinMX help site.
- http://www.vladd44.com/

MegaBrowser.com
- Free peer-to-peer program that turns your PC into a web and ftp host so you can host your own sites and trade files. Built on IE plus has tabs, fetch, personalities, and search.
- http://www.megabrowser.com/

ReviewManager
- A client-review tool for file and document sharing, viewing, transferring and management. Allows people to show work, ranging from movie files to document files, over the internet.
- http://www.reviewmanager.com/

Iwannadownload.com
- Run your own P2P program and this software to compare file names and sizes for their pre-qualified list of files. Increases your chances of getting a good file.
- http://www.iwannadownload.com

EW.com: For a Song
- Entertainment Weekly rates Rhapsody, MusicNet, Pressplay, and Emusic.
- http://www.ew.com/ew/article/commentary/0,6115,344896~4~0~whichonlinemusicservice,00.html

Myster
- File sharing utility for Mac, Windows and Linux platforms featuring a realtime, self-organizing and self-optimizing network.
- http://www.mysternetworks.com/

My Web Server
- Free personal peer-to-peer web, file and application server that allows you to message, save your favorites-bookmarks, file upload, and save HTML pages in your shared directory.
- http://www.mywebserver.org/us/

WWW File Share
- File sharing system with a browser-based client allowing sharing amongst closed networks of friends.
- http://www.wfshome.com/

Spartacus
- File sharing P2P groupware software supports MP3 sharing as well as documents and other formats.
- http://www.udanex.com/

Drumbeat
- File-sharing program for the Mac featuring multiple servers and unlimited results.
- http://drumbeat.info

Filetopia News
- Software, news, games and forums related to this file sharing tool with public key encryption.
- http://www.filetopia.be/

ZPoc
- File sharing software for the Christian community to share beliefs through songs, with their friends. Features include chat and private messaging.
- http://www.zpoc.com/

The giFT Project
- A modular daemon capable of abstracting the communication between the end user and specific filesharing protocols. The giFT project has a homegrown p2p network, OpenFT.
- http://gift.sourceforge.net/

Endeavors Technology
- Provides secure peer-to-peer (P2P) collaboration networks with its product, Magi Enterprise for PCs, laptops and Windows CE handheld devices. Includes messaging, WebDAV publishing and encryption.
- http://www.endeavors.com

Blubster
- Decentralized file sharing system for MP3 files featuring resumable and distributed downloading.
- http://www.blubster.com

Publius Publishing System
- Web publishing system that is highly resistant to censorship and provides publishers with a high degree of anonymity.
- http://www.cs.nyu.edu/~waldman/publius/

StreamSec 2PCube
- Integrated client and server with strong encryption designed for small groups on large networks. Features include file sharing, messaging, news and chat.
- http://www.streamsec.com/pp2p.asp

BadBlue
- A free, very small Windows web server for sharing, publishing and serving files.
- http://www.badblue.com

iMesh
- User-to-user exchange community.
- http://www.imesh.com/

After Napster - The Beat Goes On
- A large listing of Napster alternatives - software for various platforms, search and metasearch services.
- http://www.afternapster.com

Konspire
- A searchable, distributed file sharing system with no central servers, and resumable file transfers. Written in Java 1.1 for portability.
- http://konspire.sourceforge.net/

JukeDaddy
- Offers a program to allow streaming of mp3s and control music files from anywhere on your network.
- http://www.jukedaddy.com

OnSystems
- Offers secure private servers to corporations who wish to maintain their own p2p networks.
- http://www.onsystems.com

Carracho
- Offers Mac software that allows you to share files, search for files, resume stopped downloads, and create own chat rooms.
- http://www.carracho.com