=== Google ===
* '''[https://plus.google.com/111222582430970219528/ German Hitchhiking Championship]'''
* '''[https://plus.google.com/115204293701741712866/ Hitchwiki === "Hitchhiking Community Amino" ===* '''[http://aminoapps.com/invite/PI3OSYKKED Hitchhiking Community Amino]'''Social network for Hitchhiker
=== Facebook===