Sir Tim Berners-Lee has been spearheading efforts to make web more intelligent and useful to people. As a part of this effort, he has been calling people to open up the data and put it on the web in an open format. Recently, at TED University, he spoke about some examples of how open data on the web has been used for many useful purposes, including a major role in rebuilding Haiti. We thought we will share the video of his talk here.