This issue of Uplink looks at how desktop mapping programs can help you identify geographic patterns and create images to help readers better understand your stories.

Newsrooms have used desktop mapping to locate clusters of blighted properties, pinpoint pollution and analyze demographics. News artists then convert the results into often startling analytical maps.

Our stories tell you about these successes, walk you through downloading mapping data from the Internet, describe what programs are available, how much they cost and where you can get them.

Also inside are stories on the results of two national surveys revealing what hardware and software newsrooms are using - including mapping programs.