title: What does '&feature=related' mean in a YouTube URL?
body: <p>I saw a couple another ones like 'feature=feedu', 'feature=relmfu' in a URL (http://www.youtube.com/watch?v=oHg5SJYRHA0&amp;feature=relmfu). I can attach or remove these from the URL and nothing changes. Does anyone know what these parameters mean and what kind of information is being passed using these parameters?</p>