Office 2.0 refers to a new social model for office documents enabled by web 2.0 technologies. It moves away from the proprietary and isolated "Office 1.0" model towards open collaboration and sharing of documents online. Key aspects of Office 2.0 include browser-based editing, syndication, synchronous collaboration, social sharing and tagging of documents to facilitate connections between users. Services like SlideShare demonstrate this new model by allowing people to share and discuss presentations online, engaging new audiences and uses for office documents. Realizing the social potential of documents requires rethinking models of authorship, navigation, and privacy in this new collaborative environment.