Using Dojo to Enhance Web Mapping Applications « GeoChalkboard

Using Dojo to Enhance Web Mapping Applications « GeoChalkboard
ESRI and Dojo
The ArcGIS Server JavaScript API, released with ArcGIS Server 9.3, sits directly on top of Dojo providing developers with access to Dojo user interface widgets and all the other benefits of Dojo core through a simple reference in your web application.

Since Dojo is included with the ArcGIS JavaScript API you do not need to reference the Dojo API to get access to its functionality. When you include the following references to the ArcGIS Server JavaScript API, you also get access to the full Dojo toolkit. There is no need to download, host, or even reference the Dojo API.