Having a robust link structure is very important for search engine optimization (SEO) as search engine spiders discover pages following your URL’s and index them accordingly. Putting right anchor text on the links not only improves your search rankings but also help visitors guess the content of the landing page. Follow these guidelines to improve your overall link structure:
- Put right words that describe the page you are linking to in your anchor text (putting “click here” on the anchor tests will not bring much SEO value as compared to backgammon sets, backgammon games, or backgammon boards for the linked pages, even though they lead visitors to the same destination)
- Links must be encoded in plain HTML even if pages are dynamically generated to help search engine spiders understand that the page will be there with the same content next time when a visitor comes looking for it
- Put more links to your main pages than the less important ones to increase their placement is search rankings
If you are interested in learning more about this exciting area, Jim Boykin has a nice post on Optimizing Internal Link Structure.
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Hi, I am Ashish Kothari. I have helped several small and medium businesses make money from the web over last 12 years. If you have a project and need help in online marketing, improving SEO - website rankings, traffic, usability or conversions 
Hi, good post. I have been wondering about this issue,so thanks for posting.
Thanks Andrew. Proper linking structure, be it internal or external is very important for full SEO benefits. You will be surprised how small things can lead to big gains in rankings.