1, Rookie Gallery: is a design material site, there are a lot of video, audio, office class material, video material there are thousands, all very high definition, the site's video, audio material are all free and commercially available, very suitable for the self media crowd.
2, Pexels: this is a well-known free short video material site, providing high-quality video clips, including landscapes, people, sports and other different subjects, you can search and download according to demand.