What is mean by SEO Bookmarking?

SEO bookmarking is an off page link building technique where high-quality bookmarking websites are used to bookmark the page or article, blog posts with most powerful and relevant bookmarking websites. Before conducting SEO bookmarking the domain authority, page authority, Google page rank values and organic traffic rates of websites should be keenly checked. Important guidelines related SEO bookmarking is used fresh and unique content description for bookmarking also. Don't try to use the original content description used in the original pages or posts