For those of you using PostRank to keep track of the most popular content on your respective sites or blogs, here's another useful tool -- the PostRank Discovery engine.
The PostRank Discovery engine enables everyone to:
* discover the most timely, relevant, and engaging content online.
* search and segment content by specific topic areas and interesting and influential publishers.
* create, share, and subscribe to the the best curated and auto-updated reading lists.
Best of luck to those who wish to use this service from PostRank.