Do we need Google+ invitation to create Google+ account ? Is it mandatory ?
Yes Google+ invitation is mandatory.
Google+ product is in market on field trails.Field trails is just the preliminary test on live which helps Google+ project team to estimate the rules, traffic and performance of their product. Only limited number of users who are invited can only create their Google+ account.
If you need Google+ invitation, just drop a comment on this post with your mail id.We are not sure how much time it takes but we assure, we will send you invitations.