Using data from the Metropolitan Transportation Authority, this animation tracks public transportation on a weekday, starting at 4am. Sumus, the Canadian software company behind these visualizations, uses the General Transit Feed Specification data from various cities to create a whole series of videos that you can check out on YouTube. Be sure to watch full screen in 720 HD to see the movement of subways and buses (which appear to be color-coded to match the corresponding lines).
Journalism’s Voyage West – fantastic interactive data visualization project from Stanford plots the growth (and recent decline) of American newspapers, 1690-2011
“@keithurbahn … was not first to speculate that the [Obama] address was related to Bin-Laden, nor did he have a particularly influential presence on Twitter, with a following of 1,016 and a casual digital portrayal. But the right network effects came into play, and enabled his post to generate enough trust amongst his followers, their followers, and so on.”
The bin Laden news: How a single tweet spread like wildfire. (Click through for full visualization from SocialFlow Company Blog)