With the popularization of UGC (user-generated content), some sections of traditional news pages are contributed entirely by users rather than professional journalists . In recent years, more and more mainstream news sites are becoming participatory journalism sites as they integrate UGC into their original platform. User-generated content is becoming one of the most important characters to distinguish online news from print news. User-generated content also brings commercial benefits to some news sites, such as the online news agency British Scoopt which sells user-generated content (photos and videos) to professional news media and shares revenue from these sales.