A recent post by Matt Ericson from the New York Times on the importance of knowing when to map geographic data and when not to. He states that we are sometimes too quick to map geographic data. In some cases a chart or table can better represent geographic information and tell a more effective story. In some cases there are no better alternatives than to map geographic data. The important thing is to remember that there are multiple avenues of presenting geographic data in which a map may or may not always be the best form to convey data and ideas. In the post he also provides examples of some cases he has run in to where a map and where a table has provided a more effective means of geographic data presentation.
See the full post here.