Update: Share on Google Plus as you click +1 button on sites and blogs [Google Plus]

Google +1 button have been updated with a new feature which lets you to share your +1'd content on Google+ easily.

When you click +1 button on some blog or site, you will see Share on Google+ box. Click in it to start typing and it will expand to Google+ post as shown in the image below.

This update may not be available yet for everyone.
This is the first ever official Google+ sharing tool for blogs and sites.