The above 17-minute video is of a talk he did in Feb 2009 in Long Beach, CA., at TED (Technology Entertainment Design), which is an annual conference about “ideas worth spreading” that has been held annually since 1990. The TED Talks cover a broad swath of humanity, including science, arts and design, politics, education, culture, business, global issues, technology and development, and entertainment. Since June 2006, the TED Talks have been published online and are available at TED.com
In the talk, Berners-Lee discusses opening up and linking data that is currently locked away: such as government data that could be useful for scientists, businesses and individuals; as well as research data that could help find medical cures faster and more efficiently; and social networking data, so that users (such as you and I), would be able to interact with, and update, data in all of the places we store it, without visiting each location individually.
At the beginning of the video, Berners-Lee discusses the development of the World Wide Web, which is a very interesting historical reference coming from the man who started it. (Click the following link for the Difference Between the Internet and the World Wide Web.)
In the talk, Berners-Lee differentiates between CONTENT (such as documents, files, photos, music, etc.), which are what the web facilitates connection between, and DATA which can be analyzed in always-improving ways to forward mankind’s understanding of so many areas of the human experience.