Invite Friends to Google+ With a Link

Are you a bit disappointed at the small number of your friends who are ready to make the leap to Google+? One of the issues is the perceived difficulty behind joining. Google has made it even easier for both parties. For you, all you have to do is share a link. If your friends follow the link, they're automatically invited. Joining Google+ couldn't be easier.

Google is limiting users to 150 invites though this method, and it seems as though the email method is still unlimited. Google+ has become the fastest growing social networking site, and with this, it's even easier.
via TechCrunch