OpenSocial is a standard for the social web managed by the OpenSocial foundation. It offers an API to develop application that are compatible across multiple platforms using HTML, JavaScript, XML, and REST. After one year of existence the standard has been implemented by more than 20 containers, is used by more than 600 million users and more than 7500 applications have been developed for it. The session will start with an overview of what is OpenSocial and it's ecosystem (social networks, developers, enterprise vendors). We will continue with a general summary of the differences between the Portlet 2.0 specification and the OpenSocial gadgets.