I know that the traffic charts from Alexa have to be read with caution and a knowledge about the fact that they can be unreliable. But for highly visited sites they are a good indication of usage and traffic.
I am currently working on an article about the long tail of content consumption and how the internet is about to change our habits and the way we spend time on different media.
During my research a friend pointed me to this nice comparsion.
Two very different companies indeed, but an interesting trend…