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Open Culture Advertisment Take online courses from the world’s top universities for free. Below, you will find 1,700 free online courses from universities like Yale, MIT, Harvard, Oxford and more. Our site also features collections of Online Certificate Programs and Online Degree & Mini-Degree Programs. UC Irvine, OpenCourseWare Water is the economic, social, and physical lifeblood of humanity, providing the bases for agriculture, industry, transportation, energy production, and life itself. Despite its importance, alarming signs suggest that there are looming threats to this vital resource. The World Resources Institute contends that the world's thirst for water is likely to become one of the most pressing issues this century due to population growth, drought, and climate change. The World Bank reports that many developing nations already face a crisis from intensive irrigation, urbanization, diminishing supplies, and deteriorating infrastructure; and, UNESCO predicts as many as 7 billion people in half the world’s countries will face shortages of potable water by 2050.

Are Online Classes Right for You? By Chris Kyle Are you thinking about going back to school - and doing it online? You're not alone. According to the Sloan Consortium, 5.6 million students studied online in 2009. To add some perspective to that statistic, nearly 30 percent of the 19 million full-time and part-time students enrolled in all colleges and universities in the country took at least one online course in 2009. To help you decide if studying online is right for you, we put together five things to keep in mind when considering going to school online.

Academic Podcasts - Backdoor Broadcasting Company Virtual Professors Higher Education Goes High-Tech By Chris Kyle You want to go back to school but you have one big worry: namely, how are you going to find the time? Thankfully, new innovations in online education - like web cams, live online chats, and online discussion boards - may offer the flexibility you need to earn your degree. Khan Academy