I believe the difference is you ask a question to a specific person. And all these questions and answers are laid out on a single page in a nice interview style. And considering that most of the guys being asked and those doing the asking are all pretty smart guys, it makes for super interesting reading. Not that you would get any of that from their landing page though. Read the page for Patio11 to get an idea of how great it is.

I can only imagine they're a YC startup, based on the people I see active there after I registered. (PG, JL, other YC partners) With Demo Day today, things are picking up PR-wise. :)