Adding Followers Gadget in Blogger

The Easy Way

Go to Dashboard - Layout - Add a Gadget (where you want the gadget to appear) - On your left, click on 'More Gadgets', and you should be able to find the Followers gadget there.

If you get an error that says "This gadget is experimental and is not yet available on all blogs. Check back soon", or if some other reason you can't readily add the gadget from the list of gadgets, try the method in the steps below.

The Alternative Way

Step 1: 

Go to Dashboard - Layout - Add a Gadget (where you want the gadget to appear) - Look for HTML/Javascript gadget - Click on the plus (+) icon to add the gadget.

Step 2: 

In the next window, just copy the URL (the address, as highlighted in the screenshot below) of the page. Once you've copied the address, you can close this window.

My URL looks like this:

http://www.blogger.com/rearrange?blogID=1782490369597539464&sectionId=sidebar-right-1&action=editWidget&widgetType=HTML&referrer=directory

Step 3: 

Paste this URL in a text editor (such as Notepad, MS Word, or wherever you feel comfortable editing it). Next, find for the part that says 'widgetType=HTML' in your address, and change it to 'widgetType=Followers'.

My URL looks like this now, after making the change:

http://www.blogger.com/rearrange?blogID=1782490369597539464&sectionId=sidebar-right-1&action=editWidget&widgetType=Followers&referrer=directory

Step 4:

Copy this modified URL, and paste into your browser (preferably the browser that you were using early on, the on that is logged into your Blogger account). Hit 'Enter' on your keyboard, and voila, your Followers gadget is back.