On Wikipedia, there are constant edits by people around the world. You can poke your head in on the live recent edits via the IRC feed from Wikimedia. Stephen LaPorte and Mahmoud Hashemi are scraping the anonymous edits, which include IP addresses (which can be easily mapped to location), and naturally, you can see them pop up on a map.
Map of live Wikipedia changes
Projects by Nathan Yau See All →
Fast Food Menu of Calories
How does the distribution of calories vary by fast food restaurant? Here’s a chart that shows all the menu items for ten of the biggest national fast food chains.