Link popularity is one of the most important factors effective in your website ranking on search engines result pages (SERP). All the main search engines like Google, Yahoo and MSN consider this factor as the most important one. They believe when a website is important, other websites will link to it to have good and informative resources for their readers. So an important website that has a higher number of incoming links should be ranked higher than its other competitors that have lower number of back links. Webmasters could easily find out that for having a high ranking websites, they have to improve their websites link popularity.