BlogCatalog widget can be obtained directly from BlogCatalog�s website provided that you create an account with them. You can customize your own widget to whatever suits you by changing the color, number of rows, columns, and other elements. There are a few advantages of having this widget:

-By displaying the icons of people visiting a blog, a blogger can get some information about this reader base. This information will include gender and age among some of the details.
-It proves that a blog has visitors thus making a blog look more professional.
-Once you will see that somebody visited your blog you will be more inclined to visit someone else�s blog to return the favor.
-The widget looks very cool, and many bloggers will enjoy looking at pictures of people that visit their blog.