Deluge is a fully-featured cross-platform BitTorrent client. It is Free Software, licensed under the GNU GPLv3+ and adheres to freedesktop standards enabling it to work across many desktop environments.
GTK-gnutella
gtk-gnutella är en server/klient för Gnutella peer-to-peer-nätverket.
Tixati
Tixati is a New and Powerful P2P System