A system is presented for structured coauthoring of a document, the system comprising a server. The server includes one or more documents organized into sections, a document permissions module that stores user access permissions for each section of a document, a document update processing module that processes requests from a user to share document updates with other users and that processes requests from a user to receive document updates from other users and a document rendering module that renders a document for display on a client so that sections of the document are updated with shared document updates made by users. The user access permissions determine the extent to which a user can modify each section of the document.