Even though Digg was once known as the next big thing in social news site, it was torn down and sold in small pieces. Yet, part of the concept still lives on. The search engine Blekko just launched ROCKZi, a visually compelling way to consume and interact with the fresh content that users care about the most. After selecting the category that you want to read (Geekery, The BiZ, Glitterati…), you are presented with articles in a grid view reminiscent of Flipboard on the iPad. You can upvote the article with the "This RockZ" button and leave a comment. Users can submit new articles and share them on Twitter, Facebook and Pinterest. On top of that, you accumulate karma points with every action.