Vague question and you risk derailing it by saying it's the death of Google. But do you mean something like Yacy? It's a p2p search engine. Or do you mean some

Vague question and you risk derailing it by saying it's the death of Google. But do you mean something like Yacy? It's a p2p search engine. Or do you mean something like Facebook, Twitter, Yelp, etc where users turn to instead of Google Search?