What should I read next?

I recently discovered the complete waste of four hours that is StumbleUpon. You enter a bunch of interests and just hit the "Stumble" button and it randomly brings up a site it thinks you'd be interested in it. While I'm reading stories about creepy things kids say and watching a webcam of people crossing the street at Abbey Road Studios (and realizing my interests run the spectrum), I came across this great site that I think could be useful to a lot of my readers.