Wikipedia

"... Wikipedia has just 78 full-time staff (due to reach 117 in 2012) and 370 servers, against some 60,000 for Facebook and over 1m for Google. Unlike other internet giants, its content comes from unpaid editors. It spends 44% of its income on technology (including programmers); other administration costs make up just under a quarter. Fund-raising takes up 8% of the budget. It accepts no advertising...."
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