Depending on the type of site, and who you’re trying to reach – visuals (images / illustrations / icons / video) are a huge part of conveying your message. I’m going to guess that in the way that YouTube and Vimeo transformed the industry and marketing abilities for filmmakers, that video backgrounds will do the same for filmmakers and cinematographers like Saimawn Si-Shen here on his site. It’s pretty cool when the video background for your site… are, well, your videos.