Links to news articles located elsewhere. The main content actually on HN is the comments. If an article has no comments yet, the "X comments" link will say "

Links to news articles located elsewhere. The main content actually on HN is the comments. If an article has no comments yet, the "X comments" link will say "discuss" and you could be the first one to comment on that article. There's more, you can submit your own selections and stuff. Try it out and take a look at the Guidelines from the bottom menu.