your Website get Good Position on google , You can Receive more visitors and traffic also . So improve your website ranking on major Search Engines
Create high PR backlinks for your website. Not only will it surge your traffic, but it will increase your site rankings. High PR links gives lot of link juice which Google simply loves. I hope this helps.
You should create high PR backlinks related to your site only. Google will follow your backlinks and if they found something wrong they may penalised you for your wrong works.
For example you could be blacklisted in a Search Engine... Did you check your traffic sources, any BIG changes?
In my point of view, content marketing is the best approach when it comes to increasing organic traffic and organic search (which is what I am trying to do now). A month ago, I've stumbled upon this article that help me realize how important a content is; definitely worth sharing. http://marketingland.com/how-succeed-content-marketing-organic-search-78591
Content Marketing is very much appreciable but to some extent to cheque whether its not for keyword spamming. Excessive use of keyword may harm your sites