Although not strictly geography-related, I really wanted to post about the US Library of Congress utilizing YouTube to make digital versions of some of the earliest motion pictures ever recorded available online. The LOC’s collections are amazing historical treasures, and cover a wide variety of topics. You can find out more about the Library of Congress’s holdings at their website. Although many of the videos are also available directly on the LOC website, the YouTube partnership is great because it makes these motion pictures easily searchable by the huge YouTube user base.
I spent a few minutes checking out the LOC’s YouTube channel, and picked out one example, Native American members of Buffalo Bill’s Wild West show performing the Sioux Ghost Dance in 1894: