This is part three of a series on Google Page Rank. You can start here.
Inbound or back linking is the most talked about aspect of Search Engine Optimization (SEO) and has a material effect on your Page Rank. As we discussed earlier, your PR can only be maximized in one of two ways, firstly by correctly structuring your internal links to the new and increasing quality content and secondly getting people with PR to share their vote with you by linking.
Here are two examples of how someone linking to you increases your PR.
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A site of PR2 links only to your site, so the calculation is 0.15 + 0.85(2/1) = 1.85 .This adds 1.85 goodness to this page linked to.
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The PR injected into your page is 0.15 + 0.85(7/99) = 0.2101.
From a quick look you can conclude that the less links on a page the better (ie PR2 with 1 link) but that is not strictly true. This is because the PR scale is logarithmic and not linear. We don’t know what the scaling is but it is large enough that people have observed it’s effect. So the rule of thumb is the more PR that a given site has the greater the ability to deliver goodness to your site. However that does not mean you need to neglect lower ranking sites, they are the ones that are going to get you ranking in the first place when you first start blogging.
At this point you need to have a toolbar to help you understand a page ranking of a given site. That is when you need to get the Google Toolbar for Firefox. You can find it at http://toolbar.google.com (notice here I have added rel=”nofollow” to this link).
If you look at the middle of the toolbar you will see what looks like a green battery. Roll over the bar and you will see the page rank for the site you are currently on including your own.
Now you cannot get penalized for some one linking to you except for certain link farms that Google knows about, so you can go ahead and comment on that blog that interests you, however there is something additional you need to know.
The rel=”nofollow tag”
In 2005 Google drafted a standard called the no follow tag. What this was meant to do is to combat comment spam by telling Google, Technorati and other spider systems not to follow a particular link. By default it is switch ON on your standard blogging software including WordPress.
The problem is that this tag has result in disadvantaging small real bloggers who want to build on the world wide community of discussion. The big guys like TechCrunch, Lifehacker and others don’t need our help building a linked in community and they invariably have it switched on. However the little guy IS disadvantaged because we need these links to help people find us and be a legitimate voice in the discussion.
Almost all blog platforms by default are set up so that a “dead end” piece of code is inserted wherever there is a link in a comment, so that search engines will not “count” the link as they are crawling the internet. This was originally designed to help stop comment spam, but it doesn’t work. What it does is remove some of the incentive for your readers contribute to your site by commenting on your posts and you on others.
What you need to do is to comment on blogs that are DoFollow blogs. You can find these at our Do Follow Lists Page.
This is a great place to start your journey online and find new people to talk to. 99% of these people on these pages are grateful for your discussion so go ahead and comment thoughtfully.
You can start at Part one here.