Applications to Improve Privacy on Online Social Networks

Privacy management is different across the many online social networks and not always satisfies the user expectations. Some social networks members may demand choosing their privacy preferences more richly and exercise a tighter control on the information they drop. For this regard, it is under question if some of the Digital Rights Management systems features may be incorporated to the privacy management in social networks, and if the privacy terms themselves can be expressed in standardized policy languages, like XACML, additionaly bringing interoperability across the networks.