Social bookmark services are gaining in popularity because it’s getting harder to find quality, permanent one way backlinks. This is why we use Bookmarking Beast because they use the best websites such as twitter, reddit, stumbleupon, delicious, pinterest and others 100 manually from aged accounts. This means your bookmarks are trusted, long lasting, and most importantly will help improve your Google rankings. Every month they send us a report of the thousands of social sites submitted to, and all we do is just input our webpages and let them handle the rest.