You may need url to other authorities with your to start with number of posts, but Ensure that you link to neutral authorities like news Websites rather than to competitor’s money web pages. I mainly url to connected Wikipedia subject web page, About.com subject matter page, major information website’s https://franciscoboyir.sasugawiki.com/5605145/the_2_minute_rule_for_why_are_web_2_0_backlinks_important_for_seo