StackOverflow Update: 560M Pageviews a Month, 25 Servers, and It's All About Performance - High Scalability -The folks at Stack Overflow remain incredibly open about what they are doing and why. So it’s time for another update. What has Stack Overflow been up to? The network of sites that make up StackExchange, which includes StackOverflow, is now ranked 54th for traffic in the world; they have 110 sites and are growing at a rate of 3 or 4 a month; 4 million users; 40 million answers; and 560 million pag
