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Efficiency of the web style

"Megaservices like Yahoo!, Google, and Hotmail have relatively low operations staff costs. These megaservices have discovered ways to deliver content for less that the milli-dollar that advertising will fund. For example, in 2002 Google had an operations staff of 25 who managed its two petabyte (2^15 bytes) database and 10,000 servers spread across several sites. Hotmail and Yahoo! cite similar numbers - small staffs manage ~300 TB of storage and more than ten thousand servers."

Up until 2000, I believe the operational staff at Yahoo was 8 and included the co-founder Jerry Yang.