I spotted a funny but yet basic SEO concept in a Google Webmaster Help thread.
One webmaster asked, and I quote:
It true that Get sitelinks from Google is directly related to traffic of alexa.com
The first flag that this is a poor question is that I had to edit several typos in the question itself.
The second flag is that a Googler comes in and gives a straight forward answer, as opposed to tip-toeing around the response.
JohnMu from Google clearly said, no! He said:
Just to be very clear: Alexa's metrics do not play a role in whether or not Sitelinks are shown for a site for a specific query.
There you have it - a clear, very clear, response from Google on Alexa's role at Google, or lack there of.
Forum discussion at Google Webmaster Help.