High PR social bookmarking sites like Delicious, Digg and StumbleUpon help search engines in different ways by indexing published articles in a quicker way, measuring quality of post, getting top in search engines for specific targeted keywords and categorized.There are many free social bookmarking sites are available on the web but all social bookmarking sites are not do follow.
Some social bookmarking sites use the no follow attributes, do not use such kind of websites,which are really worthless.Google likes only qualify back links with do follow attributes.Getting back links from high page rank social bookmarking sites is incredibly valued by the search engines.Here's the list of the 100+ high PR social bookmarking sites list 2016 (updated).
