Currently the most important activity related to seo is Link Building. Links are the main component of the web, understanding how they work can definitively increase your search engine rankings. Constantly creating backlinks from various source will help your rankings, curently we can create backlinks from the following sources:
And much more
The most important thing about backlinks is that they must be manually created and should always come from relevant, contextual content. In order to do that you need relevant articles and descriptions and also add the proper tags and categories.