Lightning Maps
Live Earth DataWatch lightning strikes hit the Earth as they happen.
Why it made the cut
Lightning strikes roughly 44 times a second worldwide, and almost none of it is visible unless you're standing under it. This aggregates real sensor networks into a live map, so you can watch a storm system's actual electrical activity crawl across a continent in something close to real time.
Try it when you're In aweWide awake
Visit lightningmaps.org