By Milan Petrovic (http://dev4press.com/)

If you want to know what your readers like, then you need to allow them to quickly rate your individual posts and rank other readers' comments; GD Star Rating does exactly this. Don't be fooled by its deceptively simple outer shell. Those rating stars are backed by a massive administrative area that allows you to customize virtually every aspect of how a user rates your blog's content. For example, you can change how the stars look, how many times to allow users to vote, where to display ratings, and much, much more. In addition to being crazily customizable, GD Star Rating also offers awesome analytics on who's rating what, which items are popular, and virtually any other data point you could imagine.