Hi lynn
;-)
1/p2p
You can install Gnunet from you Synaptic package manager it's a secure,
trust-based peer-to-peer framework
http://www.gnunet.org/
Gtk-Gnutella
BitTorrent Clients such as Transmission
murmur (music,soulseek)
Mumble
Low-latency - great for talking and gaming
Bitmessage
https://trisquel.info/fr/wiki/comment-installer-bitmessage-dans-trisquel-7-belenos
there is also Apt-p2p
https://trisquel.info/fr/wiki/apt-p2p
2/Tor
For Jabber (Encrypted)
Pidgin, Psi, + OTR
https://ring.cx/
qtox (in Trisquel repositary)
uTox : https://trisquel.info/fr/wiki/utox
Decentralized chat/sites like WP
How to install and use ZeroNet in Trisquel 7 Belenos
https://trisquel.info/en/wiki/how-install-and-use-zeronet-trisquel-7-belenos
https://p2pfoundation.net/