Nielsen//NetRatings to Use Time on Site as Measure of Engagement
According to the Press Release (PDF) issued on Tuesday, 10 July, 2007, Nielsen//NetRatings is going to begin using “Total Minutes” as the “best engagement metric” for Web 2.0 sites.
Since sites using Flash, AJAX, streaming media, and other rich internet applications (RIA) tend to have relatively few page views for a given length of visitor stay, this will have a net-negative effect on large traditional sites that do not have that RIA interface. For example, a typical visitor on Google spends 20 seconds per page, whereas a YouTube visitor spends more than twice as long per page on a typical visit (46 seconds).

July 10th, 2007 at 6:52 pm
[...] Yahoo Link to Article youtube Nielsen//NetRatings to Use Time on Site as Measure of Engagement » Posted at SEMClubHouse on Tuesday, July 10, 2007 Nielsen//NetRatings to Use Time on Site as Measure of Engagement 5:04 pm - July 10th, 2007 According to the Press Release (PDF) … a YouTube visitor spends more than twice as long per page on a typical visit (46 seconds). View Entire Article » [...]
July 10th, 2007 at 7:39 pm
[...] YouTube Link to Article ajax Nielsen//NetRatings to Use Time on Site as Measure of Engagement » Posted at SEMClubHouse on Tuesday, July 10, 2007 Nielsen//NetRatings to Use Time on Site as Measure of Engagement 5:04 pm - July 10th, 2007 According to the Press Release (PDF) issued on Tuesday, 10 July, 2007, Nielsen//NetRatings is going to begin using “Total Minutes†as the “best engagement metric†for Web 2.0 sites. Since sites using Flash, AJAX, streaming media View Entire Article » [...]