Press Release Grader (www.pressreleasegrader.com) not only assigns your press release a grade of 1 to 100, but claims to be able to tell you exactly what you must do to improve it. Just cut and paste your press release into the window on their site, complete the form and click on “Grade Press Release.” Within seconds, you’ll see your score and a list of suggested improvements.
It even gives the readability level by grade level for your press release. They also offer a video tutorial that explains in more detail how to use this service.