Differentiation between popularity and novelty? What a succinct explanation. Incidentally Twitter originally used popularity, but switched to novelty[1] because

Differentiation between popularity and novelty? What a succinct explanation. Incidentally Twitter originally used popularity, but switched to novelty[1] because Justin Bieber regularly dominated the trending tweets list. [1]http://mashable.com/2010/05/14/twitter-improves-trending-topic-algorithm-bye-bye-bieber/ http://mashable.com/2010/05/14/twitter-improves-trending-top...