Wartime Google gave us Google+. Wartime Google is still bumbling, and despite OpenAI's numerous missteps, I don't think it has to worry about Google hurting its business yet.

Google+ was fun. Failed in the market though.

Apple made a social network called Ping. Disaster. MobileMe was silly.

Microsoft made Zune and the Kin 1 and Kin 2 devices and Windows phone and all sorts of other disasters.

These things happen.

I do miss Google+. For my brain / use case, it was by far the best social network out there, and the Circle friends and interest management system is still unparalleled :)