Rater 2.0 can be used to have your website visitors assign scores to subjects in nice intuitive way. You then will be able to rank subjects by popularity, quality or anything you make the rater about. You probably have seen more of these rating widgets. When watching a video on Youtube for instance you can assign “stars” to it to rate the video. You can check out the example page of Rater 2.0 to see the diversity in its appearance and functional possibilities. Custom configurations can be made using the Rater 2.0 API page.
Currently Rater 2.0 is a Prototype based control, optionally with Scriptaculous. As the web is evolving, so should eDesign. Therefor MooTools and jQuery versions of Rater are expected by the end of May 2009.