Backlinks are very important because they help improve the position of your site in search engines. Among the SEO techniques is one of the most effective.
They are as credible vote, in which the site directs the url to your believes the site's content that gets links is quality.
For this reason the more reference you have thus better your position in search ranks.
But there's no use putting your links on various websites and blogs which has no authority, because no will power and there is still risk of having your site penalized, winning metrics low and be marked as spam in several sites like Majestic, Ahrefs and MOZ.
It is already proven that the Webs 2.0 spend a lot of strength and juice to the sites.
Each blog has DA 98 and PA between 27 and 30.
In total will be 10 "Dofollow" passing juice to your website.
Send me the URL of your website or article, and the keyword (anchor text) will be placed on 10 blogs.