One easy way of generating some extra cash from your Google+ activity is by joining the Gooplu.com program.
Gooplu, available at
http://www.GooPlu.com is a Google+ link shortening
service that will transform your long Google+ URL to one that looks like this:http://gooplu.com/ID
Gooplu will pay you for linking to any website or page that you include in your Google+ stream.
You can also earn money by referring friends, being paid up to 20% oftheir earnings on a regular basis. As a Gooplu member, you will be able to access real time earning reporting, analytics and more.
Google+ is constantly evolving and has already introduced new features while in beta mode. It’s an exciting time to get involved, so if you haven’t yet received an invitation to join, keep an eye out for the public launch.