Google's Christian Oestlien announced on Google+ that you can now use Google AdWords Express to advertise your Google+ page in Google.
You can do so when you see an "Advertise" link on your Google+ page. It uses AdWords Express to create and place the ads for your Google+ page. Christian explains that once you enable it, it will:
- Attract new customers and followers with ads that run across Google (on Search and Maps, for instance), and across the web (on the Google Display Network)
- Will only show these promotions when they're appropriate - not overwhelming people with random ads when they’re trying to spend time with friends
Here are some pictures:
Note, this is currently available to US customers but will be rolling out more broadly soon.
Forum discussion at Google+.