The image above is a snapshot taken from the bottom right of my browser. Those bars change for each site I visit. PageRank (green) changes on a per page basis while AlexaRank (blue) is fixed for the entire domain. As much as I try not too give much weighting to those two metrics, I find myself looking at the bars every time I visit a site to help me determine whether the site is worth watching, how well it ranks and how popular it is. If both bars are high I tend to care more – I want to assess why a particular site is doing well.
What Is AlexaRank?
The Alexa Toolbar
AlexaRank Vs PageRank
Is AlexaRank Important?
Blog Search Engine Optimizer( Email Posting)