The KB offers several RSS feeds to keep you up to date on what is going on.

Site Wide

Questions

http://kb.askmonty.org/feeds/questions/

Articles

http://kb.askmonty.org/feeds/articles/

Comments

http://kb.askmonty.org/feeds/comments/

Article / Question specific

In addition to the site wide feeds above, each article and question has a specific feed you can follow. These can be found in the sidebar for each node, labeled "History" and "Comments".