2 years ago I imagined an RSS search engine but unfortunately like many other ideas it has been only started and abandonned few weeks later.
By the way I'm still persuaded that there is something to do around this.
After thinking back to this idea the first step is to collect some interesting #rss #atom feeds in order to have enough diversity.
If you have any place where I can collect OPML or good RSS feeds it would be great :) my goal is having 1000 rss feeds.