Hi BCG, are you finding web sites that are on the subject, but not an RSS feed for those sites?
If that's the case, what browser are you using? If you're using IE7, it has an RSS feed detector - some sites are RSS publishers (like DBR!) but don't advertise that fact - and the feed detector lets you know what's available. If the RSS Icon "lights up" (turns from Grey to Orange,) just click on it, choose the feed you want, and the data is rendered in IE.
RSSIcon.JPG
You can probably then cut and paste the URL into Google Reader to subscribe. (Don't know, I just read my RSS via IE.)