Alexa measures the number of times people with the Alexa toolbar on their own computer visits your sites. That ranking means absolutely nothing.

If you are looking at numbers, I suggest that studying your own stats, particularly number of page views and unique visitors. Look at the refferal URLs and the search terms people are typing in to reach you.

Nobody uses the Alexa toolbar. One good reason: it sucks. If Amazon were not subsidizing Alexa to keep it going, it would probably whither immediately.

If you think Google PageRank means nothing, then an Alexa ranking falls into the "below sub-nothing" category.

Steve