Nick Bradbury compares the advantages of using a desktop RSS reader (such as NetNewsWire) vs. a web-based reader.
I have been using NetNewsWire for several years, but I recently tried using Google Reader for a few weeks, so I could use the sharing features. I found that I prefer using NetNewsWire and I was glad to come back to it. NewsGator online has improved a lot and now looks pretty good on an iPhone, but it’s still not as nice as Google Reader.