2. Backlinks from .edu and .gov are more powerful than backlinks from other domain extensions.
3. Google loves these domain extensions since they publish high quality content with less commercial purposes.
4. Domains with .edu extension can only be purchased by legal educational institutions and the .gov domains are specially made for government and its institutions.
5. Now you need to find .edu and .gov blogs or forums which have the same niche with your blog or at least have articles related to your niche. You can search on Google by using these forms:
14. You need to write relevant comments on .edu and .gov blogs to get backlinks from them. Please remember to read the whole article carefully before adding a comment.
16. I strongly recommend you not to use any comment automation softwares out there that would only bring your comments to spam folder and get your IP address listed as spammer.