Navigating through a website using the keyboard arrow keys is really useful as you don't have to look around the page for the Newer or Older page links. You might have already seen this feature on many top blogs.It’s really easy to implement this feature on your Blogger Blog.You just have to add the arrow key navigation widget to your blogger blog.
When you share a post to Facebook or Google+, they display a summary of the post and also a thumbnail if available. Twitter has also come up with a similar solution called Twitter Cards.Twitter has come up with different types of Cards and this tutorial will help you in adding a summary card to your Blogger posts. 
Blogger launched it’s official version of the Contact Form Widget but, it works only on the Blogger Sidebar. If you want to add the contact form to the sidebar, stop reading and refer this tutorial - Contact Form Widget for Blogger SidebarContact Form Widget for Blogger Sidebar. If you don’t want to add the contact form to your Blog’s sidebar but want it to appear on a specific page, then this tutorial will help you out. I didn’t want the contact form to appear every where on my blog.
Update 07/01 : This post has been updated so that the contact form works on all forms of Blogger mobile views.
The long wait is finally over and blogger has come up with it’s own contact form. Now you no longer have to rely on 3rd party Contact form solutions. Blogger has added a new Contact Form Widget which will fit into your Blog’s sidebar. You can also add the same contact form on a separate page and customize it if you want to.
Adding a contact form to Blogger is now really easy. Below steps will guide you in adding the contact form as a sidebar widget.
Google has released it’s Social Commenting System and has made it available for Blogger Blogs.The new commenting System is more social and looks better than the original Blogger Commenting system. The Google Plus commenting System will also display social interactions made on Google Plus. This tutorial will help you to enable Google Plus Commenting system on your Blogger Blog