As a fan of the Common Craft website which explains tricky Web 2.0 concepts such as Twitter and Web 2.0 itself, I was pleased to see that their latest video covers Google Reader.
I have been using Google Reader for several years now as my RSS feed aggregator of choice, and although I am aware it has lots of competitors such as Bloglines and Rojo.com it works for me.
[youtube=http://www.youtube.com/watch?v=VSPZ2Uu_X3Y&hl=en&fs=1]