"The Mad Video [ http://www.themadvideo.com/ ] is a new service for creating interactive videos. The service is kind of like ThingLink [ http://www.thinglink.com/learn ] for videos. Using The Mad Video you can take a video that is hosted on YouTube and insert interactive tags. The tags can link to websites, images, or other video clips..."
[ a further screen application http://screenbird.com/ ]
Via André Manssen, GSeremetakis, Dominique Demartini