Google Plus alternatives

Google Plus
Google+ (Google Plus) is a social networking and identity service. It's as a "social layer" that enhances many of Google online properties, and that it is not simply a social networking website, but also an authorship tool that associates web-content directly with its owner/author. Google+ users are interacting socially with Google+'s enhanced properties, like Gmail, +1 button, and YouTube comments.
Google Plus alternatives are:
Facebook, Twitter, LinkedIn
Here are the latest news about Google Plus:

2014 Google will shut down Orkut

On September 30, 2014, Orkut, the social networking service Google launched back in 2004, will be officially shut down. So if you use it as a marketing channel - just give up. Orkut was one of Google’s first attempts to launch a social network. It survived multiple rounds of spring cleaning despite the fact that it was never a huge hit outside of Brazil, India and a few other countries. The site still features Google’s old menu bar, and it looks like Google Talk never got any upgrade there either. And it’s no wonder that Google now wants users to move over to Google+ instead.

2014 Google created unified marketing dashboard for small business

2012 Google offers Google+ as an enterprise social network

2011 Google+ opens for Google Apps users

2011 Companies have to get used to Google+

2010 GMail and Google Buzz as developer platforms

2010 Google Buzz - better than Google Wave