"Google+ (Google Plus) is Google's latest attempt at social
networking. Google+ is currently an invitation-only service that
delivers functionality and many features similar to those of
"Features in Google+ include "Posts" for posting status updates,
"Circles" for sharing information with different groups of people
(like Facebook Groups), "Sparks" for offering videos and articles
users might like, and "Hangouts" and "Huddles" for video chatting
with a friend or group of friends.
"Google+ follows the company's earlier social networking
endeavors, including the short-lived Google Wave, which Google
discontinued in early 2010. Google+ is expected to expand to a
larger audience as the project matures."