Google has deprecated the desktop Web. It’s still here, but for Google it just got less important.

At least that’s the implicit message in Google’s recent mobile search update. The company is now judging how “mobile-friendly” a site is and is using that metric to weight search results served to mobile devices.

http://arstechnica.com/information-technology/2015/04/30/google-champions-responsive-web-design-in-page-ranking-update/