[Bishop]

Alexa ranking don't mean much when your talking about numbers that high. A handful of visitors per day showing up at your site with the toolbar installed will vary your ranking significantly in that range.

Probably the post accurate Alexa rankings are for those sites that are ranked inside the top 10k. Even that is all relative and can only be trusted so much.

Some sites will rank very well in Alexa and that is because of the audience they attract. People who work in internet marketing or advertising fields are more likely to have a toolbar installed. If you go to webmaster hangouts you will find over inflated numbers because of the nature of the users who visit the site. However there are exceptions... I buy traffic from some webmaster resource sites that have been around for a very, very long time that have terrible rankings but excellent traffic volumes. I know of one site I have been doing business with for years and will always do business with and I think their ranking is like 350k on Alexa. They don't have a message board but they draw great traffic off the search engines for their resources and articles.

Take Alexa with a grain of salt.. I know from looking at my stats that Alexa can show that I had a terrible day and I may have had a record day. It is a starting point if you have no other data to reference from but like I said unless you have a ranking that is a very low number the results are simple to skew.