Well, kinda. Just stumbled across a new search engine that actually incorporates human screening of sites into its search results. Pretty interesting concept; I won't repeat it, you can read about it there.
I certainly don't think this is scaleable, nor do I think that I will get the best results just because a human has interjected. What I *do* like is that they've acknowledged the problem in the current search engine space - there is too much crap out there, and a search engine's job isn't about finding related content, it's about filtering out crap. Knowing the problem is half the battle.