Chamber of Patent Attorneys [in German]:
http://www.patentanwaelte.de


GRUR [in German]:
http://www.grur.de


Max Planck Institute for Intellectual Property:
http://www.ip.mpg.de/ww/en/pub/news.cfm 


American Intellectual Property Law Association:
http://www.aipla.org


Denic (.de Domains):
http://www.denic.de/en/homepage.html?cHash=3486f26050