So by now we know the vital role link building plays in determining how high (or low) your website appears in search engine results pages. A popular link building method is to post comments on blogs that allow a link back to your website. However, not all links on blogs are worthwhile and can be split down into two categories:
The “nofollow” Attribute – when the nofollow value is added to the rel tag of a link it is advising search engines that the link has not been explicitly approved and therefore should not be followed. The HTML format of the link is as follows: <a href=”http://www.myadsenseguide.com” rel=”nofollow”>My AdSense Guide</a> – it is important you can recognise these links when you see them.
The “dofollow” Attribute – when the dofollow value is added to the rel tag of a link it is advising search engines that the link is trusted by your website. dofollow blog links help promote a website and help build the reputation of the website. The default rel value is dofollow so therefore if the tag is not specifically valued as nofollow it is considered dofollow by all search engines.
So now to the key piece of this article – how to find dofollow blogs and get vital links to your website. FireFox have a tidy plugin called “NoDofollow” and is available for free download @ NoDoFollow Plugin. This is a simple plugin that highlights links in a page that have been explicitly set to nofollow.
Once this plugin has been successfully installed we need to find specific blogs using Google that are in the same field of expertise as your website. To find such blogs type the following simple search into Google:
blog keyword (keyword is your field of expertise) notify me when new comments
So for example I am running a football blog I would execute the following search:
blog football notify me when new comments
This will return a complete list of football blogs that allow comments to be added. We are half way there, now we need to weed out the nofollow blogs. This is where the “NoDofollow” FireFox plugin comes into play. When you open each blog in the search engine results page the plugin will identify which blogs you should comment on and which you are wasting your time with. This is highlighted as follows:
Red Links – this is a nofollow blog. You are wasting your time adding a comment / link here. Move on.
Blue Links – dofollow link – ensure to post a comment here. Ensure the comment is worthwhile to ensure the webmaster will allow your comment to be published.
You should now have found a good list of dofollow blogs. The final check to ensure completeness is to ensure the blog is active i.e the article you are commenting on is no older than six months and has also been commented on recently.
You are now well on your way to building hundreds of worthwhile links and improving the competitiveness of your website. Good work!

