NewsBlur has an organizer that provides this exact info. Just sort of last update (or even stories per month) and mass delete. It's somewhat new but it makes a

NewsBlur has an organizer that provides this exact info. Just sort of last update (or even stories per month) and mass delete. It's somewhat new but it makes a world of a difference. The organizer is on web and just launched on iOS. See http://blog.newsblur.com http://blog.newsblur.com.