Rojo has both shared and recomended links. But they're only good for other people using rojo. No rss feeds outbound that I've located.
Typepad: New sidebar feed
Whoa, check out the preview of a sidebar feed at The Long Tail "So if you'd like me to serve as your filter and aggregator of Long Tail comment around the web, just copy the 'syndicate this sidebar' link into your favorite feedreader."