The current spate of RSS feed-reading tools is missing a major feature: None of them (Bloglines, Google Reader, NetNewsWire, etc.) provide help with answering the major focus problem, "Which feeds should I pay attention to?" They are great at collection (one of the five GTD workflow phases I teach clients - gathering new feeds, and sorting them by source, date, number of unread, etc.) but that's just creating a bunch of haystacks. They still require us to laboriously look through each to find the needles (i.e., to assess value).
LinkedIn profile