German Privacy law as a perk or a burden when realising social media concepts. Did privacy concepts in social media had an impact to social media platforms and their success or failure (e.g. the VZ cases)? What does this mean for future concepts? Does privacy actually be relevant for users of social media before and after the Snowden revelations? Do we have a level playing field between German and US-based social media? What should be the principles of a modern privacy law allowing for social media innovations AND protecting users?