How do you advertise on Google+?

Hi there!

I have tried Googling how to go about advertising on Google+ and I keep getting information on +Posts – like here: https://www.google.com/+/business/brands/ads.html

They look great, but a bit unorthodox. Any experienced internet marketers know if there is currently a “regular” way of advertising with Google+? For example, on Facebook I can pay to have a post “boosted” so it shows up in more feeds. Something like that- Or does that no exist yet?