“You can find Linux clients for several file-sharing networks.
Taking into account how many clients are available for each, the
current top three peer-to-peer (P2P) networks are eDonkey2000,
FastTrack (derived from Kazaa), and Gnutella. Here are some desktop
applications that allow you to become a full-fledged file
sharer.“The eDonkey2000 (eD2k) network is a server-based, P2P,
file-sharing network that primarily contains music files, video
files, text files, and software. The servers store information
about available files and act as communications centers, but the
data itself resides on the client nodes. The list of available
servers changes frequently, since anybody can become a server by
running the appropriate software on a machine connected to the Web,
so client programs usually must download server lists…”