+1 for changing the URL color. I'd prefer it directly under the title as well. And maybe find a way to emphasize the important parts of the URL, cut out the random numbers.
Thx -- we cut stuff out of the URL now, though perhaps could cut out more. Note you can change the color in the settings: http://duckduckgo.com/settings.html
We've also experimented with moving it around (including where you suggest).
