1. A method for storing documents tracked on behalf of a plurality of organizations, comprising: receiving a document to store on behalf of a first organization; receiving a tag for storing in association with the document; storing a document in association with the tag, the document being stored to document management storage; and associating the document in the document management storage with a unique identifier; wherein the document stored in the document management storage and copies of the document are tracked using a portion of a database limited to information of the first organization.