Everyone has probably seen this via Google+, Twitter, or Facebook, but it is too good not to link.
In case you missed this episode of Minute Earth when it first made the rounds last week.
One of the fun things I get to do in prepping for my classes is getting to look at all the amazing video resources out on the interwebs for Geography and geospatial technologies. While putting together my Intro to Mapping lecture, I remembered this great 6-minute video introduction to the National Map, including a little bit about the history of the USGS’s role in mapping the US, how digital technologies are changing mapping, and the development of the National Map and its functionality. Even if you saw the video when it came out back in January, it’s still a great reference for what the National Map is all about.