FeedMingle is an application that merges different rss or atom feeds and creates only one. It´s a simple app that simplifies the work involved to create only one feed. Also, FeedMingle converts the merged feed in an html widget that you can paste into your site.
Venture Slogan: FeedMingle.
FeedMingle’s own description: “…FeedMingle makes lives simpler for web designers/developers, feed readers, bloggers, or just anyone who wants to merge two or more rss / atom feeds into one. It mixes all the feeds provided and creates one RSS feed, Atom feed, JSON feed, and a html widget to simply paste into your website or blog…”