comScore released its comScore Video Metrix rankings for March 2007, showing Google Sites as the top U.S. streaming video property with 57.4 million unique people streaming ("streamers") and 1.2 billion video streams initiated. YouTube.com drove the lion's share of the video streaming activity at the Google Sites property with 53.5 million unique streamers and 1.1 billion streams initiated.Other notable findings from March 2007 include:
- Five out of every seven U.S. Internet users (71.4 percent) streamed video online.
- Three out of every ten (30.1 percent) of U.S. Internet users streamed video on YouTube.com.
- The average online video viewer consumed 55 video streams, or nearly two per day, during the month.
- Online viewers watched an average of 145 minutes of online video in March 2007.
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