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"YouTube has altered its suggested videos algorithm to favor videos that are watched for the longest periods of time.\nPreviously, suggested videos \u2014 which appear as related videos on watch pages, or recommended videos elsewhere on youtube.com \u2014 were served up based on the number of people who clicked on those videos. Now, YouTube videos that trigger the longest viewing times will be prioritized.\nIn a post, YouTube said the change was instated to serve up better and more relevant content to audiences. But it also seems to penalize those who create shorter videos. \nA 30-second video that averages 25 seconds of viewing time is less likely to be recommended than a four-minute video that averages 28 seconds of viewing time \u2014 which makes us wonder if this isn't more about delivering impressive engagement numbers to advertisers than bettering the experience for YouTube visitors.\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/03/15/youtube-videos-algorithm-change/>