In a possible sign of market saturation, Facebook's (FB) unique U.S. video viewers fell 8% Y/Y...

|About: Facebook (FB)|By:, SA News Editor

In a possible sign of market saturation, Facebook's (FB) unique U.S. video viewers fell 8% Y/Y in March to 45.1M, per comScore. The decline comes even as third-party video sites see traffic take off thanks to Facebook Open Graph integration. Yahoo's (YHOO) viewers are estimated to have increased 8% to 60.6M, good enough for second place. Market giant YouTube (GOOG) only saw 2% viewer growth to 146.1M, but its minutes/viewer continued to soar (previous).