A study by the Pew Internet & American Life Project finds that more than three-quarters of America's adult broadband users watch or download video. And more than half of those who watch also send links to other people. The study, simply titled, "Online Video," was conducted in February and March 2007.

"The growing adoption of broadband combined with a dramatic push by content providers to promote online video has helped to pave the way for mainstream audiences to embrace online video viewing," says Mary Madden, a senior research specialist at Pew and the lead author of the report. "Fifty-seven percent of online adults have used the Internet to watch or download video, and 19 percent do so on a typical day."

News is the most popular genre of online video overall and in every age group except 18 to 29 year olds, for whom comedy is the most popular, followed by news. In fact, young adults answered that, on a typical day, they are just as likely to watch news as comedy.