I'm finding more and more feeds are being returned from Google. This seems like stupid behaviour to me. You use a search engine to meet an information need. I want to know something about Ferret, I'm likely to use a search engine to find it. Do I want to subscribe to a feed? No, that's way too much commitment. If I find what I'm after and the site looks interesting I'll poke around a bit and then I might decide it's interesting enough to subscribe to.

The correct behaviour would be for Google to return a link to the site from which the feed originates.