Here’s some food for thought from comScore:
More than Half of Top 25 U.S. Web Properties Generate More Traffic from Outside the U.S. than from Within
comScore Networks, a leader in measuring the digital age, today released the results of a study showing that 14 of the top 25 U.S. Web properties attract more traffic from people outside the U.S. than from within. Among them are the Top 5 Web properties in the U.S. – Yahoo! Sites, Time Warner Network, Microsoft Sites, Google Sites and eBay.
I’m sure the major sites are intimately aware of their traffic sources, but it has interesting implications for efforts to increase traffic and ensure monetization.