Google Plus, a new initiative from google with a aim to redefines how social sharing works. Currently google+ is available as invite only.
Google plus only works with Google Accounts that have an active Google Profile. i.e. if you have not created google profile before, you won't be able to sign up for Google+.
You must have a Gmail account to Access or Sign Up or to receive Google Plus invitations. If you have used Windows Live, Hotmail or Yahoo account to sign up for google account you can access google+ after creating a Publicaly Visible Google Profile.
Setting Up a Google+ Profile:
1. After following the received invitation you will be taken to google Plus page where you have to sing in with you google account.
2. You can Leave your email address at this link http://google.com/+ Google will send you an invitation.
Google Plus Features:
The Google+ bar, which appears at the top of Google products, is your connection to Google+ . You can share what’s on your mind, view your Google+ notifications, access your profile, or jump to a variety of other Google products. For instance, to get to Google+, all you have to do is click +[Your Name]
Create a new post from the stream or the Google+ bar. Upload photos from your Google+ Photos homepage or from the Photos tab on your Google profile. Share directly from your mobile device.
+Circles: share what matters
You share different things with different people. So sharing the right stuff with the right people shouldn’t be a hassle. Circles makes it easy to put your friends from Saturday night in one circle, your parents in another, and your boss in a circle by himself - just like real life.
+Sparks: strike up a conversation
Tell Sparks what you’re into and it will send you stuff it thinks you’ll like, so when you’re free, there’s always something cool to watch, read, or share.
+Hangouts: stop by and say hello
With Hangouts, the unplanned meet-up comes to the web for the first time. Let specific buddies (or entire circles) know you’re hanging out and then see who drops by for a face-to-face-to-face chat. Until teleportation arrives, it’s the next best thing.
+Mobile: share what’s around
Share updates and see what's going on around you with Google+ Mobile
Taking photos is fun. Sharing photos is fun. Getting photos off your phone is pretty much the opposite of fun. With Instant Upload, your photos and videos upload themselves automatically, to a private album on Google+. All you have to do is decide who to share them with.
Texting is great, but not when you’re trying to get six different people to decide on a movie. Huddle turns all those different conversations into one simple group chat, so everyone gets on the same page all at once. Your thumbs will thank you.