A blog (short for Web log) consists of a sequence of entries, which are displayed in reverse chronological order, i.e. the latest entry is shown first. The blog entries themselves are HTML documents, usually rather short pieces of text which may also contain pictures and links to other documents. Blogs differ in who may read the entries and who may add new entries. By default, everyone who can read an entry may also add a comment.
Blogs are displayed in a specific layout that may also be customized. Blogs may be displayed as such or may be embedded in a normal BSCW page or a user-defined Web page. In addition, blogs can be displayed as RSS news feeds; you can subscribe to such blog feeds to be informed about new blog entries.