Online Applications and highly-interactive web sites written in full-on programming languages are becoming the norm on the web, not the rare exception. Measuring these applications is challenging for a whole host of reasons. In my last post, I talked about the importance of automated testing to bring measurement fully into the application development life-cycle. In today’s post, I’m going to cover an issue that plagues application measurement, video and most other rich media measurement – how to balance cost vs. coverage when it comes to measurement.