PostRank™ measures audience engagement and provides integrated tools to enable you to customize your RSS subscriptions. Save time, boost productivity, and Read What Matters
FeedWordPress is an Atom/RSS aggregator for the WordPress weblog software. It syndicates content from feeds that you choose into your WordPress webblog; if you syndicate several feeds then you can use WordPress's posts database and templating engine as the back-end of an aggregation ("planet") website.
What LoudBlog is:
LoudBlog is a sleek and easy-to-use Content Management System (CMS) for publishing media content on the web. It automatically generates a skinnable website and an RSS-Feed for Podcasting. Just upload your audio/video files, add some notes and links, and you’re done!