Ever wondered who was reading your blog?
Or even where they came from? how they found you?...
All of these questions and more can be answered by adding Google Analytics to your site.
I have used Analytics for numerous web-sites and it truly is amazing the amount (and wealth) of the data you can get at your finger tips.
Want to know more about Analytics? here is the link to the official blog
Here is the guide I used to add it to blogger