More details on the YouTube/Warner deal:
YouTube's new system, announced yesterday and set for release in the next few months, is an ambitious effort to give media companies more control over the video on the site and to address their fears that others will profit from consumers' piracy of their content. The first entertainment company to embrace the system is Warner Music Group. The two companies have agreed that Warner Music will post its catalog of music videos on YouTube and collect an unspecified percentage of the revenue from advertising appearing alongside them. The deal doesn't cover live performances captured on video cameras or other devices, because Warner doesn't own the copyrights to those recordings.