Backlinks to your blog are very essential. Having a safe link building profile is even more essential. I have listed a huge list of natural link building techniques in this post. Today we will discuss one more source of building safe backlink (which works post penguin update) i.e. directory submission.
Blog directories are often overlooked and thought to be spammy, but if done safely these are great untapped sources of dofollow backlinks plus exposure for your blog.
This detailed tutorial on blog directory submission will walk you through the whole process of finding blog directories, registering in them as well as safe tricks to get quick approval.