Looks like clustrmaps have changed again.
Does your map look like this?
It does! Then click on the map and you will be sent to an Edublogs help page written by Sue Waters. She explains how to update your map if you are already a clustrmap user.
If you don’t have a clustrmap but would like one then Sue also gives instructions for getting one.
She also mentions other widgets you could use to be keeping track of your visitors.