Users rate some sites consistently slow and other sites consistently fast. For example, About.com is rated slow. But when looking at the data, the sites that were rated slow weren’t all really slow. Amazon is rated as fast, and it isn’t really that fast (fast enough, but not crazy fast). So why do users feel some sites are slow or fast? (About.com loaded faster than Amazon.com in the test, yet was perceived as very slow.)

This is exactly the kind of stuff that makes me like Jared Spool.