This could be an exciting news for Drigg module users as well, and all those who are interested in building their social bookmarking websites, because this is the first time this plugin works, and I never sow is somewhere else working, so feel free to check it out and make it work for your website, also plz share what you came up with if there is some additional development you have add to the plugin.
Top 5 Most Popular Social Bookmarking Websites using Drupal CMS and Drigg Module
The interesting thing is all these social bookmarking websites are using Drupal CMS and Drigg module which is the same engine we use to run our MMO Social Network, and the awesome thing is all of them are DoFollow websites