Social bookmarking is as simple as saving bookmarks to a particular website, tagging the site with your keywords. Social bookmarking sites are well perceived with search engines such as Google as they crawl (look) at sites that are socially bookmarked generally faster.
BDN SEO Ranking Specialist Ltd can help you get back links, increased traffic to your website & get your links indexed by Google. Social bookmarking can improve your search engine page ranking & your back links also. The more quality back links directed towards your site the more Google sees your site as trustworthy & if the sites are linked to yours it will improve your relevancy!