I agree! I'd never thought of using tor, but I had very similar ideas about an engine that doesn't index a site if it has ads, etc. I had an idea of using a delayed response in order to lessen the hardware requirements. So a user submits a query, then checks back later for a response. A little bit like a traditional library, haha! Anyway, i'm really glad to hear others are doing similar stuff, I think there is a market. The info is out there, it's just lost in a sea of noise.