On its Inside AdWords blog, Google has issued a call for more participants in its trial of Audio Ads, the company's radio ad service.
The call for testers includes reports that the interface of the system has received high marks from current users. The creation process, too, is said to be efficient, with the entire process running only a few days from creation to when the ad actually runs.

To sway those who might not be considering Audio Ads, the post contains a brief testimonial from the vice-president of a company that had never before included radio in the ad mix. He recounts having been wary of radio but, after deciding to try Audio Ads, being pleased with the Audio Ads results.