Links are the currency of sites.
About Back Links
Back links, also known as external or inbound links, are links from other websites directed towards your site. Such links give two benefits. They bring traffic directly from people clicking the links, and also indirectly from boosting your search engine rankings.
In terms of ranking, every link to your site is seen by search engines as a vote for your website, improving your rankings accordingly. As for traffic, each back link adds another entryway to your site, giving you more referral traffic. Links to your site are the second most important ranking factor after the ...