Google's founders, Larry Page and Sergey Brin, made giving back a company priority from the beginning. Their hope was that someday this institution (under the rubric of 'Google.org') may eclipse Google itself in terms of overall world impact by ambitiously applying innovation and significant resources to the largest of the world's problems." Google has firmly established itself as a powerful and innovative player on the corporate philanthropy scene. Google's philanthropic entity was initially formed with a pledge of 3 million shares to make grants in several broad areas, including global poverty, disease and renewable energy. In 2009, Google announced a major strategic shift: to not only fund traditional nonprofits through cash grants, but also to concentrate on using Google's strengths in data-driven technologies and information aggregation to address the world's problems - to, in effect, engineer for social benefit. Google gave away $105 million in grants during 2012, plus $1 billion more in product donations, principally productivity apps and advertising grants for nonprofits. The company was the 12th-largest U.S. corporate cash donor in 2011 and 2012, according to the Chronicle of Philanthropy. Between $45 million and $50 million of that 2012 total [was] directed toward disaster relief, university research and community organizations in Silicon Valley - with $23 million dedicated to Google's Global Impact Awards. Last year's Impact Awardees include Charity: Water, which Google granted $5 million to install remote sensors at 4,000 water points across Africa by 2015. The low-cost sensors will monitor and record actual water flow rate to ensure better maintenance of and access to clean water for more than 1 million people.