Google+ is like Facebook, where you can connect with your friends, families, colleagues and etc. The aim of Google plus is to 'make connecting with people on the web more like connecting with them in the real world'.

There are four main features in Google plus: Circles, Sparks, Hangouts, and Huddle. With Circles, you can share different things with different people, which is considered as big improvement comparing to Facebook. For more, you can go to www.google.com/intl/en_uk/+/learnmore/

You can find out how to join google plus here.