Its a new Social Networking Site.. Google plus is somewhat same as facebook.. That wall is present in google Plus.. i.e. status.
You can add your friends in the circle.. You can make different circle for family, friends.. You can chat with all members who have added in your gmail account.. Add +1 feature is added. instead of ’like’ in facebook.. You can upload photos, videos... One video is present in google Plus about competiton between facebook and Google Plus.. Its playing all the time.. And can not stop it.. Its irritating sometimes when I am trying to use any other features.. or to understand how to use it..