Glossary - N

Natural Linking
Describes the hypertext links found on web sites that are part of text content and that link to expanded or additional information on a subject without consideration of their value in link popularity .

newsgroup
A discussion forum where users can post messages and reply to other users.

nofollow
If you don't want Googlebot to follow a link and index it from your site, you can use the following tag in your href links: rel="nofollow"

Possible uses include channeling of PR away from non-monetary pages such as an "about" page. So, instead of having a live link to the about page, by having the html <a href="http://www.example.com/about.html"
rel="nofollow">About Us</a>, Googlebot will not:

1. Index the page from that link;
2. Consider the anchor text of the link; or
3. Pass any PR to the linked page.