A self-help application platform such as one hosting an interactive voice response (IVR) has a browser that executes application scripts to implement the self-help application. The execution of the application scripts is performed by utilizing various application resources, such as media conversions from text to speech (TTS) and speech to text (automatic speech recognition ASR) and other media servers. The platform is provided with a dynamic resource selection mechanism in which the application is executed with an updated optimum set of application resources distributed over different locations. The selection is based on the profiles of the browser, users, route, and quality of service. The selection is further modulated by the browser's previous experiences with the individual resources. The selection is made dynamically during the executing of the application script.