Perhaps you noticed... Alexa has a new look today.
New Headers - At the very top of the page you'll notice that Alexa's search box is placed inside a new box with easy navigation. This should make it easier to navigate around the site from rankings, to search to directory, etc. By the way, have you tried Alexa's search lately? Give it a shot: here
New Logo - We had a little fun with the Alexa logo, nothing too drastic.
Traffic Graph - We reworked the traffic graph to help improve usability. The sites to compare are listed at the top, there is a "clear" button and we reworked the tabs a bit.
I hope you like the new look. Be sure to let us know if you have any comments, feedback or suggestions.