Various technologies and techniques are disclosed for creating and managing persistent document collections. A data store is used for storing one or more persistent document collections. A content management application is used for managing documents for users, for creating one or more persistent document collections of a sub-set of the documents upon user request, and for storing the one or more persistent document collections in the data store. Users can create one or more persistent document collections from a sub-set of the documents. Users can also modify the one or more persistent document collections. A requested portion of one or more persistent document collections can be output upon request from an external application so that the external application can download one or more of the documents that are represented by the persistent document collection for further modification by the user.