Jan. 15  SALINAS, Calif--User Generated Video (UGV) sites generated such metadata in 2007 that taken in totality, offer performance yardsticks across sites. 

Total videos published in 2007 topped an estimated 1.2 million, along with 26.5 million comments. Average comments per video clocked in at 12.6 according to report published by AccuStream iMedia Research  
 

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