If you have a FB fan page, then add a widget to your blog to make it easy for your blog readers to become a fan.
Click here for the FB Fan box widget. You can add it to your blogger site just by clicking a few buttons.
Note to my clients and others using the 2-column Minima template:
You will want to modify the width of the widget to 220px and add code for the height, depending on how many fans you want to show up in the widget. The default is 10 fans, but if you want more, then add the following code so it looks like the image below: