Thinking of using ClustrMaps but haven’t yet made up your mind? Then run, don’t walk, to these great instructions posted on 14-Sept-2008 by Sue Waters on TheEduBlogger.

Here’s a reduced size image from the set of many helpful instructions and images added by Sue… I don’t want to spoil your fun, so I have only used a reduced image… click on it to see the real deal in Sue’s original posting: