The Spark maps tool uses GoogleMaps technology to allow you to create, define, and manage collections of geographically located data sets. Once a collection has been defined you can choose to share your map with others, either privately via a Spark login or more widely via a public web address.
Watch the video on the Quickstart page to learn how to get started. Take a look at some maps that have already been created on the Featured Maps page. To find out why you might want to use Spark maps, read the Suggested Uses page. To get help on using Spark maps, read the Support page.