For a ranking of your site & generating more traffic towards your website, using few promotional techniques is termed as website promotion. It is a process, which includes many techniques like Use social media platform, Do on page & off page SEO, Use long tail keywords, Focus on referral traffic, do e-mail marketing, Create shareable and interesting quality content, regularly update your website.
You can get more information about the importance of digital marketing from here: http://www.articlesbase.com/marketin...s-7487263.html

You can get backlinks by doing off-page techniques to high authority sites that will improve keyword ranking.

If you're new in this field then you must surf Google to know what the current updates of it & how to perform SEO for a newly build website. As ON Page is the most important task that must be done for a website as per the algorithms of Google, the OFF Page is too important for spreading the info of a website on particular keywords.

There are some OFF Page tasks that will work as positive for you. They are:

1. Social Bookmarking
2. Web2.0 creation
3. Blog Posting
4. PBN creation
5. Guest posting