Good news, Google plus is now open to everyone. After making some improvements, they have come up with the final version so that everyone can use this very efficiently . Millions of people were waiting since its beta launch for limited users can now get Google+ invitation directly from the Google site. Yes, just visit Google and get your invitation link through blue color arrow. Just click on that to signup Google+.
This is one of the biggest project for Google and so they have are inviting each and everyone through the Google home page. Since billions and billions of of searches are made on Google, this will surely draw attention to large number of people. This will turn add to mind boggling Google+ users
You can also visit https://plus.google.com to join Google+.