What's a web entrepreneur to do?
Thankfully Alexa does not just track your global Alexa ranking, they also track your rankings by country. This is a significant boon for all involved (or at least those who take Alexa rankings seriously) as it allows you to better understand the reach a web site has.
Let's take my website, hmtk.com, for example.
Currently my Alexa ranking is 225,184. It is not in the top 100K world-wide but, I am in the top 100K in eight countries:
Hmtk.com traffic rank in other countries:
United States 45,422
Wow, those crazy Slovenians, they just LOVE me!
What this means to advertisers is that if they want to get hung up on Alexa rankings then they should do a little bit of extra work and find out which sites are popular in the market they are trying to tap. Just because a site is over 200K in the world does not mean it is not under 30K in your target market.