The most-viewed news videos "tended to depict natural disasters or political upheaval -- usually featuring intense visuals," according to Pew's research. No surprise there.
While much of the video was taken by so-called "citizen journalists" on the ground, it was often found incorporated into professional broadcast packages that were then uploaded to the web, according to the study.
One expert says the findings indicate that news video clips aren't just supplemental -- they're a staple for news consumers.
