Blogger today added two new options to the gadget gallery, the gadget gallery is a collection of gadgets you can add to your blog via the “Add A Gadget” option on your blog layout page.The two new options are for the new Google +, Firstly a Google +1 button for readers to recommend your blog, and secondly a Google + badge for readers to follow your Google+ updates.
Imagine being able to share your blog with like-minded people across the web. Today we’ve made doing that easier with the introduction of two Google+ gadgets, the +1 button and Google+ Badge.Unlike the +1 button that can appear below a post, this gadget is specific to your blog. Displaying it on your blog will allow visitors to endorse your blog and share it with their friends.
As stated above you can add these new gadgets to your blogs sidebar, footer or anywhere that accepts gadget.Simply go to your blog layout page, click Add A Gadget and choose the gadget you want.For the +1 button you have options for the style while to add the Google Plus badge you will need your profile or page ID (A link to instructions is provided).
Have you added Spice Up Your Blog to your circles, also check out the official Blogger post here.