Germany
Kefk Network, http://www.kefk.net/P2P/Website/Language/index_de.asp
Looks like a very well documented scientific website about various aspects of P2P
Wiki dedicated to all aspects of a cooperative culture (which may be essentially synonym to p2p culture) run by Thomas Kalka.
oekonux http://www.oekonux.org
This group emerged as a BooF session at the Wizards of OS Conference in 1999, started to gain life of its own, organitzed 3 international conferences and an extensive mailinglist and became the grandfather of several other initiatives after forks and other dissociations in 2006; seeks to go international now and switch to English.
Freie-Gesellschaft-Wiki (Free Society Wiki), http://www.freie-gesellschaft.de/wiki/Hauptseite
The goal of this wiki is to find out whether and in which ways commons-based peer production has a potential that extends beyond the areas of free software and open content production where it has first emerged. It this just a phenomenon of limited relevance, or might it one day cover all aspects of production? Is a society possible in which peer production is the primary mode of production? If so, how could such a society be organized?
keimform.de, http://www.keimform.de
A group weblog discussing and analyzing the emergence and spreading of new particitory and open approaches in all areas of life – software development, content production, (non-)education, physical production, and beyond. Main authors: Benni Bärmann, Christian Siefkes, Stefan Meretz, Thomas Berker, Thomas Kalka.
Freie Modi (Free Modes descriptions), http://de.wiki.oekonux.org/FreieModi
Definitions of the various expressions of the free paradigm.