Internal linking means linking your own blog content link with other content links. Suppose If you want to put some link manually as recommendation or something related to current article then we say it internal link. It is often confusing that internal link should be no-follow or do-follow. Earlier time when Google Penguin was not introduced then blogger get PR only got homepage link at that time there was not any problem if you make your blog all links no-follow except home page. But now Google Penguin not only observe home page link but also it will judge your internal links. So if you have got a good blog with poor or low quality internal link then your site will affect by Google Penguin. Remember SEO is always changeable and variable thing if you are not follow always the latest guidelines then your SEO rank may doom.
So let’s know why we should make internal link no-follow?
- If you imagine that you are in a room with many doors and you can easily pass by all open doors but after closing doors one by one your will get stuck in one place. So Internal link is same, if you attributing the internal links no-follow that means you are closing the path of movement for your blog’s internal links. That means if your internal link do-follow then they can crawl all over the Search engine.
- Think about Google Robots who like the crawling of blog content whenever you create a new post then Robots index it and crawl it around the search engine. Thus your link can be visible to visitors so if you put no-follow attribute to internal link then Search engine just skip that link and won’t crawl it.
- In case of higher PR you must keep your all internal link do-follow. After introduce of Google Penguin you can keep your comment (rel="nofollow") no-follow but you must keep your blog do-follow.
- Some newbie keep the footer link no-follow because they don’t think that those are useful but you should tailor your footer with various link that can make user friendly. Most of the blog keep unnecessary widget in footer but they can use this section with lots of internal link thus a visitors can easily get access to important links.
Finally we can summarize that blogger should keep all link do-follow except links from comment. Rom latest SEO and Google Spam sheriff Matt Cutts also given details information that we should keep internal link always do-follow.