Apple

[Grieve]

Siri bypasses search where possible. For example, it gets info from wikipedia, yelp, wolfram alpha, etc. And of course it's integrated with iPhone apps. If none of those will do what it needs to do, it will do a web search. By default it goes to Google, but you can change that to Bing or Yahoo. Apparently it can do most things without a search engine, though, and that will become more than case as time goes by. E.g. connect to OpenTable to book a restaurant, to Expedia to book a plane, etc. It's definitely bad news for Google, and MS and Yahoo as well.