According to data from Nielsen Online, iTunes has passed RealPlayer in unique users to become the second most popular streaming media player on the market, trailing only Microsoft’s Windows Media Player. The data shows that iTunes was the only player with a positive growth rate over the last year, growing nearly 27% from Dec. 2006 to Dec. 2007 to an estimated 35.7 million unique users. Windows Media Player grew only slightly over the same time period, to nearly 76 million estimated unique users. Usage of the standalone Quicktime Player fell slightly over the period, while RealPlayer usage fell 17.5%.
iTunes passes RealPlayer in unique users