1. Google+ can be used only by invitation
2. Google+ is not a competitor of Facebook
3. Google+ can be downloaded as an Android Application

4. Users of Google+  can post status updates which would appear on Google Profile under Posts.

5. These are first features- further down more features will be uploaded.

6. Circles is present feature which allows people to share updates and  news in Group

7. Sparks searches  for videos and articles which are your preference so you always have some interesting snippet,

8. Hangouts is group video chat like a video conference.

9. Instant mobile uploads is also a feature. Photos can be uploaded as they are snapped with privacy options.

10. Huddle is group-conversation feature for mobile like a chat.

11. There is also a news feed stream..When something is shared through Google + it is added to the everyone’s stream in the Circle.It also shows everyone’s shared updates.

12. Posts can be shared in the stream — whether shared publicly, through circles or in a limited group.
13. You can filter the stream through Circles.
14. You can chat within streams
15. Inappropriate content can be reported.
16. People can be searched within the stream
17. Comments on post can be edited or deleted.
18. Shared Posts cant be edited. But they can be deleted and then reposted.
19. Posts of other people can be shared

20. Post can be muted so that updates on that post can be stopped receiving.

21. Google+ Bar can also help to connect to social networking websites.

22.  You can have a ton of friends on Google+. Robert
23. With Google+ Google adds a “You” link tp connect.

24  You can view public Google+ content without actually being invited

25. You can share something within a closed “Circle,” but somone from that circle can then reshare it with anyone, and even make it public.