Academia.edu - a platform to share papers
https://www.academia.edu/
German Federation of Female Academics
http://www.dab-ev.org/
German Association of University Professors and Lecturers
https://www.hochschulverband.de/english.html#_
Eurodoc - The European Council of Doctoral Candidates and Junior Researchers
http://www.eurodoc.net
#InnovativeFrauen - Platform for excellent women in science, business and society (in German only)
https://www.innovative-frauen.de/
Junge Akademie - academy of academics worldwide
https://www.diejungeakademie.de/en/home/
Kisswin - communication and information platform "young scientists"
http://www.kisswin.de/
Network for Decent Labour in Academia
https://mittelbau.net/information-in-english/
Network against Abuse of Power in Science
https://www.netzwerk-mawi.de/
Promovierenden Initiative - association of graduate scholarship holders (in German only)
http://www.promovierenden-initiative.de/
ResearchGate - Professional Network for Scientists and Researchers
http://www.researchgate.net/
Thesis - interdisciplinary network for PhD students and postdocs (in German only)
http://www.thesis.de/
UniWiND - German University Association of Advanced Graduate Training
http://www.uniwind.org/about-us/