YouTube's "Feedback" feature is a business waiting to happen

To measure how well users like its new site design, YouTube has added a rectangular blue tab on the bottom right corner of the site.Upon clicking the link on the tab called 'send feedback', a dialog box appears, giving the viewer an option to highlight sections of the site and leave feedback.

There are a number of companies that sell a 'feedback' feature, however none that give the user the ability to highlight sections of the sight or virtually mark the screen. This is the future of feedback in regards to websites. Somebody should monetize.