Angus Russell is a co-founder of BG Stock - a stock video library specifically for website background videos. He's constantly learning more about video on the web, and loves sharing his knowledge through tutorials, articles and free plugins and resources.
Angus's article
10 Guidelines for Better Website Background Videos
Background videos: when they're good, they're very, very good, but when they are bad, they are horrid. Angus has some tips to keep you out of trouble.