Just came across this at Problogger. It’s a new in-video ad solution set to be launched by AdBrite. The ads aren’t intrusive, you get paid by the view(I think) and you can brand the videos with your own logo. The videos can be shared and embedded in other peoples sites/blogs allowing you to earn more if your video goes viral. No mention of exactly what percentage of the ad-share you get but it’s still a very interesting development.