"Collections combine large groups of similar items on the internet, so we can begin viewing the Web as a "web" rather than a series of isolated pages. As a developer, you can create collections of your own. New collections can be created with no code – they’re only data. This page contains an overview of the collection-building process, as well as links to more detailed pages on specific topics. You can also join our technical discussion to interact directly with the Pivot team. If you don’t have an invitation and would like to participate, please leave your email address and we will notify you if we expand our private preview in the future. This overview contains the following sections:" - Cliff Gerrish from Bookmarklet

Another 'linked data' project that has a better understanding of users than the 'semweb' crowd. - Cliff Gerrish