[josefonseca]

It was a wrong move for Google to have gone into the social media business IMO. It took focus from their search, which has arguably lost quality, and injected search with too many diversions and "noise".

The level of interest in Google+ reflects "the fallacy of Facebook" as well, it is the same effect: why would people continue to expose themselves like that?

Social media with a purpose, like LinkedIn and similar, are good for business contacts. Facebook and Google+ simply aren't a business environment.

The purpose of Facebook and Google+ is to mine data and sell ads. IMO that is a broken business model, because at some point privacy will inevitably become a barrier.