Online mapping services provided through Google or Bing are extremely useful in their own respects. In fact, Rockport's own online GIS and other bigger online services are very similar. The key difference is that Rockport's GIS Division is tasked with updating data specific to Rockport. This is important because it gives the town control over the quality and accuracy of our own data. In most cases, Rockport's data will be more detailed than what is available from the other tools. The trade-off, however, is the other unique tools and applications such as real-time traffic data, and oblique aerial imagery.