Try ESRI’s online GIS to see how marketers may find out more about customer demographics tied to a specific location.
On the right-hand side, you’ll see a box titled “Who’s In Your Neighborhood”. Enter the ZIP code (e.g. 07310, 90310, 70114) to see what information you can get about customers living in these areas.
Based on what you’ve seen, what types of marketing decisions maybe supported by a GIS ?