I'm starting to get very intrigued about Blekko... their critics to Google are interesting, and, I think, right.
i love his quote, "the idea that the current state-of-the-art in search is what we'll all be using, essentially unchanged, in 5 or 10 years, is absurd to me."
I think if someone was building something so important, wouldn't be comfortable with exposing his plans. So, probably this is a shot in the water...