Social bookmarking, Blog commenting, Guest blogging, Forum posting, QnA, PPT/PDF creation & submission, Video creation & submission, Web 2.0, Micro-blogging, Infographics.
Do all off page SEO techniques to make quality backlinks with fresh content.

You can not expect the ranking of your keywords after doing the best on-page activity. Afterward, you have to go with the off-page technique which allow you give a competition to your competitor sites, for that you have to create quality back links by doing the off-page activity. You can easily know which sites are quality sites, just see its DA and PA. Off-page activity like article submission, blog submission, directory submission, bookmarking submission, press release etc

Check domain authority and page authority of the website and try create back link from there. DA and PA of the websites decide that the website is a high quality site. Back link creating is an off-page activity, which really help your website keywords to rank.

Before start to make backlink you have to carry on few and important point…

1. Page rank of a website/blog
2. Domain authority of website/blog
3. Page authority of website/blog
These three points are very significant to obtain the backlinks.

Method to obtain the quality of backlinks is listed below…

1. Guest posting
2. Blog commenting
3. Forum posting
4. Yahoo answer and question
5. Dofollow document sharing websites
6. Dofollow video sharing websites
7. Image sharing websites
8. Wikipedia page
9. Article submission websites
10. .edu and .gov websites and get the backlink from it, and it gives you the most quality of backlinks.

Getting backlinks – links from other websites to your business’s website – is the most effective way to improve your rankings.

The content used in all this must be genuine and uniqe, don't use copy paste content or any bot software.

Generally quality backlinks means backlinks form the niche and high domain websites. Techniques like Content Marketing, Relevant Forum Posting, Relevant Blog Commenting, etc are some of the techniques, which can be used to build quality backlinks.