While nothing groundbreaking in the technique, the subject matter, story, and myth-busting technique are great ways to get and keep people interested in the data: okcupid’s The 4 Big Myths of Profile Pictures.
I’m not sure I understand Digg Labs. I’ve tried, multiple times, to use the data visualizations and interfaces. It’s probably pretty cool to be in Digg headquarters with a bunch of flat screens with these things running all the time. I’m not sure how useful they are otherwise.
Of course, it’s easy to bash without some alternative. I guess I’d ask Digg this — what was the design brief for each of these visualizations? Who are the users? What problems are you solving for them?
In absence of that guidance, I can make a few assumptions. Maybe I can mock up a few visualizations that are more useful.