Robin Good: If you are looking for new RSS feeds of quality news sources to curate your own newsradar, the RSS Search Engine by Digital Inspiration may come to the rescue.
This free and easy to use RSS search engine, makes it very easy to search for your preferred keywords-keyphrases and it spits out instantly a selection of ten RSS feeds covering, at least in part, that very topic.
From the official site: "The RSS search engine will help you discover the most popular feeds on the web around your favorite topics. You may find blogs, news websites, podcasts, Twitter accounts and more."
Try it out now: http://ctrlq.org/rss/