\chapter{Related Work}
\label{ch:related-work}

This chapter gives a comprehensive overview about different projects trying to protect the users' personal data. Six different approaches are presented and their relevance for this work discussed. While some projects are extensions for established online social networks, others are completely new social networks. For each project, the way data is stored and accessed and how communication is realized are investigated. The chapter concludes with a summary of the related work.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% For each project, write about
% - how is data stored
% - how is communication realized
% - how is data accessed (authorization)
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\section{Safebook}
\label{sec:safebook}

\section{Diaspora}
\label{sec:diaspora}

\section{Akasha}
\label{sec:akasha}

\section{LifeSocial.KOM}
\label{sec:lifesocial}

\section{Twitterize}
\label{sec:twitterize}

\section{FaceCloak}
\label{sec:facecloak}

\section{Summary}
\label{sec:related-work-summary}