New-to-me, and looks fairly recent. From Geoawesomeness: This web tool will let you find and analyze any satellite imagery in under 10 seconds. “The service is called Land Viewer and offers free, on-the-fly, real-time imagery processing and analytics packed with features. It’s cool and insanely fast. It gives you access to imagery from Landsat 8 and Sentinel 2 satellites with more to come soon.” I haven’t done too much with satellite images but this is pretty amazing.