I just added these to my SEO Resources page, here are some great sources for inexpensive or free stock video to use on your websites:
Free videos for your websites and backgrounds – I just heard about this one, excited to add it my list.
From Envato, his one looks promising, looks like videos are around $7-$33. Upon a quick search I found some decent $8 videos for the keywords I searched (beer).
Free video source!
Looks like a subscription one, but if you buy a lot of videos and you can find some you like, this may be a good source.
Another inexpensive video source, but I can't find a search tool on it?