Let's Start with the definition of Link Building.
Link Building is the process of getting external websites links to your website or web page. It is one of the strongest ranking factors in SEO for building trust in Google and improving website visibility on SERP’s.
Why Link building is important:
1. It increase trust and authority of website
2. For improving Keyword position on SERP's by anchor test
Link Building Strategies: How To Get Other Sites Linking to You
1. Content creation and Promotion:
Guest Blogging, Article and Blog Submissions, SlidShare, PDF sharing and Press Release and blog Commenting, these are the way to get back links, Content promotion is the strongest factor in SEO for backlinks as well driving traffic. Read here how to increase your website visibility and traffic by Blogging. (Note: Only target niche, High DA websites and Build Do-Follow backlinks)
2. Forum Posting:
This one is one of the best factors of Off-Page SEO for building back links, improving keyword position and driving traffic to your website. Make sure that forum website has high DA and giving you Do-Follow link signature.
3. Question and Answers:
This is an amazing thing for building back links, User engagements and fastest traffic driving on the website.
4. Social Bookmarking:
Social Bookmarking is the good way to submit your web page on other website and get back links.