Digg Rings Using the Digg API, I grabbed the top 10 most-dugg stories of the day (by midnight) for the past year - May 24, 2007 to May 23, 2008. I then rendered a series of tree-ring-like visualizations (moving outwards in time). Rings are colored according to Digg's eight top-level categorizations (see key at bottom of page). Ring thickness is linearly proportional to the number of diggs the stor