RSS
Really Simple Syndication
or: RSS Feeds
Allow anyone to subscribe to updates to blogs (or wikipage), creating an interlinked 'blogosphere'.
The Washington Post explains: “RSS lets Web sites publish free "feeds" of their content, which a program called a newsreader collects on a set schedule, displaying new headlines and links for you to read within the newsreader or, with one click, in your Web browser" (http://www.washingtonpost.com/ac2/wp-dyn?pagename=article&contentId=A55027-2004Mar13¬Found=true)
Some sites offer the same functions as an RSS reader, i.e. the possibility to combine various blogs in folders and to monitor them all from the same place, see http://www.bloglines.com/