FreeBSD

GTK-Gnutella    http://gtk-gnutella.sourceforge.net/    Gtk-Gnutella is a clone of Gnutella which needs GTK+ (1.2 or above). It is currently developed and tested under Linux (Debian 2.2).

Gnut    http://www.gnutelliums.com/linux_unix/gnut/    Gnut is a command-line client which implements the gnutella protocol. It supports all features available in the original Nullsoft client, as well as many others.

Hagelslag    http://tiefighter.et.tudelft.nl/hagelslag/    Hagelslag is an implementation of GNUtella. The main goals for this implementation are flexibility, stability and performance.

Mojo Nation    http://www.mojonation.net/    Mojo Nation is a revolutionary new peer-driven content distribution technology, or so they say. It's software with a businessplan, check it out!

Gnutella    http://gnutella.wego.com    This website is the home of the software based on the original gnutella client by Winamp's Justin Frankel.

SnarfZilla    http://snarfzilla.sourceforge.net/    Snarfzilla is a Napster-like client which operates over Freenet. You can also browse Freenet in an HTML browser, like Fproxy, but securely, without access to the web in the browser.