Nearly 123 million people in the US viewed 7.2 billion videos in January 2007 alone, according to comScore.
The average streamer watches about two videos every day, for a total of 151 minutes per month.
Viewing is actually more common on weekdays than weekends. Video streaming is 60% greater than average between 5 and 8 pm on weekdays.
"Marketers have a great opportunity to leverage Internet video in conjunction with their traditional TV buy and essentially double their 'primetime' commercial airing hours," reported Erin Hunter of comScore. "'Primetime' TV viewing occurs between 8:00 and 11:00 P.M., while 'primetime' viewing of online video occurs during the preceding block of time — between 5:00 and 8:00 P.M. on weekdays. Shrewd marketers will utilize a multi-channel strategy to capitalize on these adjacent 'primetime' blocks in order to maximize their marketing impact."
Thanks to its acquisition of YouTube, Google sites are now the top Web properties for video streaming. YouTube served up nearly a billion video streams in January alone.