Google always follows the strategy of building interest among the users by allowing limited number of people and furthermore, will start adding more by sending invitations for those who are keen about the service or product.
Earlier, it followed the same strategy for Gmail, Orkut, Google Buzz, Google Wave and even for the most recent launch: Google Music (currently Google Music is available only in US, that too through invitations).
Now with the success of recently launched Google+ (I call it as Facebook killer for now) which has already crossed 18 million users, it has allowed limited registrations and then slowly started rolling out the service to rest. But for the eager one’s who couldn’t wait till they get the invitation, Google has created a page/form for requesting invitation and the people who sign up will get the invitation on priority .
In case if you didn’t get the invitation yet, you can simply request for one through the comments here. Our team will be sending them instantly. This is the InfoGenra’s exclusive giveaway for the community.