Litenin is a very light and shockingly fast feed reader.
Litenin doesn’t display a feed item’s
description, which makes it a bit too light for me, but it’s well worth a look if you tend to use RSS to skim headlines, opening browser tabs as you go.
I, too, require something just a bit more heavy but I love the idea and execution. Feels a bit like the original Notational Velocity to me. That’s high praise.