While you are trying to achieve the top rank of any search engine you should keep track of your link popularity, because link popularity of your website is the magic key of SEO which will take your site to the desired success point.

It is worthwhile to mention here for those who are new to SEO about “ What is Link Popularity” or for those website owners who have opted for SEO of their website and the SEO Plan provided to them contains a term Link Popularity.

Don’t miss understand the meaning of Link Popularity as a common popularity among the visitors of your website. Though it is indirectly related to such inner meaning but in SEO Link Popularity tell some other story.
Link Popularity is the sum count of quality and quantity websites linking to or by your website.
Link popularity depends upon three different types of links. They are - internal links (the links within your own website to facilitate navigation from one web page to other web page within the same site from all informative corners of your website), inbound links (link from another website page that points towards your website. It is also called an back link) and outbound links (link from your own website that points towards other websites)

The more the link popularity of your website, the more priority given to its ranking.

The inbound link or back link from quality websites contributes directly to the link popularity but though indirectly, but outbound links too contribute in enhancing link popularity because while collecting the information from these websites which your website links points to, the search engines will read links to your site in terms of their relevance to your website.