What is a back link?

References play an important role in professional success in offline world. Imagine a big industrial magnet referring you in a job market. You are sure to have a better visibility. Similarly in the online market once your website has a back link from a high page rank website your performance shoots up.
Back link or reciprocal link is a two way link. This means that your site has a link to the host site and the host site in turn has link pointing back to your site. You may ask – what is the significance of this back link?
Let us view the significance of this back link.

Back link and page rank:

Search engines like Google, Alexa and Yahoo and may others rank the importance of a web portal based on its back links. Once your website has relevant and good back links your search engine ranking increases.

Thus back link is a effective tool for web site performance. Thus submission to back link directories can take your website to higher strata.

Back link and site traffic:

Not every visitor keys in the exact URL of a site to visit the site. They either land on a site based on search engine results, or through back links. Back links from a high traffic and high page rank site may increase your site traffic dramatically. Thus back link promotes site visitor ration and helps in site development and site visibility.