Google just announced that they have created a few variations of the Google+ page badge.
Be Part of the Newest Social Network That Everyone is Talking About!
If you are new to the Google+ lingo, badges are a widget-like box that are placed on non-Google+ sites and enable visitors to add the company to their circles without leaving the page.
Google+ pages are relatively new and marketers are looking for any way possible to get more followers. Badges are a fairly simple way to advertise your page to a captive audience and pick up a few new followers.
The new badge designs are currently only available for developer preview, but will be available to everyone soon.