This example demonstrates Real Estate Portal USA Parcel Overlays as a Tiled Map Service in ESRI's ArcGIS API for JavaScript Version 3. Pan and zoom as with any ArcGIS API for JavaScript Map. Click on a parcel to show a popup bubble containing its attributes. To duplicate this example in your own environment, get a Parcel Overlays client key, then "View Source" on this page and replace the client key with your own where noted. If you are interested in seeing how many map tile and parcel requests have been made in this page load, you can see this similar page with request counting.