Document libraries that facilitate content contribution to and management
of a website. In general, a document library comprises a database, a special "document
library" file system folder and the documents in that folder (or within subfolders
of that folder). The database maintains properties of documents in the document
library file system folder, and is used to dynamically update views of the document
library file system folder and views of properties of the documents. Each document
folder is a folder in which content of a specified type may be read and saved.