FeedBlitz is the premium FeedBurner alternative – see http://kb.feedblitz.com/article/AA-00444 – and this plugin is a drop in replacement for FeedBurner’s FeedSmith plugin. Use this plugin as you migrate your FeedBurner – see http://kb.feedblitz.com/article/AA-00477 – or regular WordPress feeds to FeedBlitz to capture all feed traffic and track subscriber statistics.