Kent

First he provided the incredible GeoTagIt! mashup (written by Alessandro Gallo [Garbin]), now he's added a nice touch for rating content. The items have stars that you can use to rate the content. Click the value, and quicker than you can say, "Atlas", your vote has been recorded. The stars even twinkle to let you know (cute touch, and nice usability IMO).
Best part of all? Well, the news feeds on the site, of course.