Excerpt from:  Marketing. Communication. Results.
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January 25, 2005

SEO and NoFollow--Increasing The Value of Information

In the long run, the NoFollow attribute will likely result in an improvement in search results. Here's why...

The nofollow attribute is the beginning of a very powerful idea called typed associations; a way to classify links and allow us to create a deeper understanding of how information relates to other information objects. It's not good enough that a page link to another page - we need more discrete mechanisms for determining how important a link may be. NoFollow is simply one small step toward the typing of links.

There are times when a blog post (for example) may include links for the benefits of its readers, but suppress content relationship-building for machines (such as Google). There are many ways to determine relatedness - explicit attributes (like NoFollow), and more sublime attributes such target. Target is an interesting one because based on a value of target="_blank" I can tell that this link is not important enough to replace the current browser window with the contents of the page expressed in the link (e.g., the author does not want the visitor to leave the page where the link is presented).

"Google's support for a nofollow attribute throws a wrench into comment and referral spam by adding a huge new concept to the Web: a link of no confidence." -- Rogers Cadenhead

The embrace of nofollow allows us to shape (ever so slightly) what we mean by relatedness, and in the future, I predict many more shades of gray will emerge to define how information relates to other information. The net effect will be an improvement in machine discoverability.

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