Blogger has announced "the first of many Google+ features" today, launching an automatic +snippet sharing box after you publish a blog post. It only saves a few clicks, but this makes it as easy as humanly possible to share Blogger posts to your Google+ circles.
In order to turn on this sharing option, Blogger users must link their Blogger and Google+ profiles. Blogger users got the option to replace their user profiles with their G+ profiles in October. Users can disable this feature in their sharing settings, and they can always share individual posts using the 'share' link in the post list.