Through sites such as YouTube and Yahoo! Video, Web-based video has become one of the fastest-growing parts of the Web. You can view everything from news reports on CNN.com, to a video about the effects of a recent earthquake, to documentaries about the Iraq War. Of course, much of the material will be of little use in a writing project. With careful selection and evaluation, however, you might find video that will help you better understand and contribute to the discussion of your subject. The following are some leading video search sites: