Get High Targeted Traffic
Social Bookmarkings are very high activity of Off- Page SEO, you will get much targeted traffic from people searching with Social Bookmarking Sites List . They will click on your bookmark link and visit your site. Your tags will rank well in the search engines due to the authority these sites have.
Search Engine Indexing
Most of these Social Bookmarking sites
are authoritative sites. The search engine spiders visit these sites so often that your links will be crawled almost immediately!
Search Engine Ranking
Getting one-way incoming links is the main factor to higher search engine ranking. With Social Bookmarking, you can get unlimited ‘keyword’ links to your site. Having more keyword links that are relevant to your site will result in higher ranking.
Having high PR
Social Bookmarking sites linked to your site will improve your site’s PR. With a higher PR, you can link to your new/existing sites and improve their ranking too! You can even monetize on it by selling links from your site!