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
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How Spending Changed for Different Income Groups
I compared spending in 1996 against the most recent spending estimates from the Bureau of Labor Statistics.
What Makes People the Most Happy
It’s in the details of 100,000 moments. I analyzed the crowd-sourced corpus to see what brought the most smiles.