Klaus Weidenbach
Not sure if I should recommend to watch this talk. It has some good points, but is this really from 2014?!? Feels like 3 years back before I heard about ~friendica ~friendica.
What a list:

IndieWebCamp: http://indiewebcamp.com/Projects

wow, they even mention ~friendica ~friendica in the D* article. o_O :facepalm

Vimeo: "Designing for privacy in mobile and web apps" Amber Case-Interaction14 (Interaction Design Association)

#^
Tobias
Well... they talk about StatusNet, which is dead AFAIK it's GNU Social nowadays ;-)