[rickdeveloper]

Yes! Maybe I'll build a premium customizable version out of it. Do you think that'd be useful? Bing charges around $5 per 1000 searches, so the premium version would be around the same (with caching covering hosting, maybe).

[yanmaani]

I think I might be willing to pay some amount of money for it, but not very much. I think a lot of other people would be willing to pay decently.

If you want to be cynical, just do Bing/DDG searches over Tor, and scrape that into the cache. This is $0/1000 searches, though it obviously violates some ToS somewhere. Unless they want to block Tor, you should be good.