YouTube unveiled some interesting statistics from the Olympics. Worldwide YouTube provided streams to many locations, including the United States, 64 Territories (in Asia and Sub-Saharan Africa), Canada and Brazil, with more than half a million live streams at the same time world wide. In the United states, 159 million total streams were delivered on NBCOlympics.com, with 37% consumption on mobile devices.
More background information:
How the Olympics played out on YouTube.
Bringing the Global Games to a New Global Stadium — YouTube.
