The next Web of open, linked data: Tim Berners-Lee on TED.com

20 years ago, Tim Berners-Lee invented the World Wide Web. For his next project, he's building a web for open, linked data that could do for numbers what the Web did for words, pictures, video: Unlock our data and reframe the way we use it together. (Recorded at TED2009, February 2009 in Long Beach, California. Duration: 16:23.)