Searching for RSS feeds is not RS

So I'm trying to use the search programs to find RSS feeds and I'm SO confused. I tried to do a Bloglines search and tried to use Topix.net and I'm still at a loss. Does this only find specific blog entries or news articles about my search topic or actual blogs? From my attempts, it appears to be only the former. I would much rather go to websites that interest me and subscribe to the feeds that they publish on my own than try to rely on a search engine. I guess I'm just going to have to find the feeds the old-fashioned way. :(