http://www.mirriad.com MirriAd, through a service called AdBroker, delivers Embedded Advertising into videos ranging from user generated content up to studio quality productions. This allows In Video Advertising, as brands and objects can be placed into video streams, looking just like they were always there.
http://www.thealarmclock.com/euro/archives/2007/09/mirriadds_embedded_a.html