Thursday, July 8, 2010
Following up on yesterday's post, Law Prof Blog Rankings
: as others
have pointed out, raw traffic numbers (visitors and page views) are only one of the measures of the influence of blogs. "Stickiness' -- the amount of time readers spend on a blog -- also is an important metric. Unfortunately, the SiteMeter measure -- Average Visit Length -- is problematic for at least two reasons. First, it computes the average only for the most recent week. Second, it begins counting the visit length only when a reader goes to a second page; if a reader stays on a single page, the visit is given a 0 visit length
(no matter how long the reader lingers on that page).
From what I am told, Alexa uses a more sophisticated aproach in computing its Time on Site metric, which it measures over rolling weekly, monthly, and three-month periods. Here are the three-month Time on Site data for the 25 of the Top 35 Law Prof blogs by traffic as measured by Alexa: