September 24, 2010 6:54 am Learning Online as Alternative to Classroom Learning California based Ecademy helps teach students at home or on the road. US & World Videos 1:07 How long will your fridge keep food safe during a power outage? 1:21 Watch the trailer for NBC's My New Favorite Olympian 3:53 A gas station meeting with Bill Walton changed this paralyzed young man's life forever 1:46 Heat waves getting hotter, longer, and more frequent because of climate change 1:03 More than 2,000 people buried alive in Papua New Guinea landslide, Government says