Ventusky is one of my favorite geovisualization websites. Users can select any of numerous physical phenomenon to view in near realtime, from wind gusts to surface temperatures to cloud cover, all with variables for time and altitude. This website serves as an apt companion for our study of the atmosphere and hydrosphere. Most notably, the tradewinds around the equator are often obviously evident, as well as Hadley cells and the acceleration from high to low pressure areas. Also of note, the coriolis effect can be seen if the correct settings are selected.