DocumentCloud will be software, a Web site, and a set of open standards that will make original source documents easy to find, share, read and collaborate on, anywhere on the Web. Users will be able to search for documents by date, topic, person, location, etc. and will be able to do "document dives," collaboratively examining large sets of documents. Organizations will be able to do all this while keeping the documents–and readers–on their own sites. Think of it as a card catalog for primary source documents.