It's nothing new in this article. We already know all about this.

Link exchange also has its value as the google rank algorithm about the link popularity. Just so so.

the related link exchange can improve your site rank now and anon.

What discomforted me about the article is that it is very vague as to the pagerank/ranking relation.

There is none.

PageRank is the currency of the Web.

May I sell you a bridge?

i think this is great article.

The article is well written and very informative. This will be of real help to the beginners and moreover i feel it can be summed up in by saying that Links are the blood of the whole system as it keeps running and moving the business. Thanks