Making Privacy a Fundamental Component of Web Resources

We present a social network inspired and access control list based sharing model for web resources. We have specified it as an extension for OpenSocial 1.0 and implemented a proof of concept in Orkut as well as a mobile social photo sharing application using it. The paper explains important design decisions and how the model can be leveraged to make privacy a core component and enabler for sharing resources on the web and beyond using capabilities of mobile devices.