Nielsen/Netratings announce VideoCensus: new metrics and methodology for online video audience measurement

On Feb 14, Nielsen/Netratings announced new service providing ‘accurate stream counts and granular audience demographic profiles’.
PDF of media release here.
Methodological innovations are claimed for VideoCensus:
Nielsen Online’s VideoCensus is the first and only syndicated online video measurement service to
combine patented panel and census research methodologies, providing an accurate count of viewing
activity and engagement along with [...]