What CIOs can learn from Facebook's use of open source

SAN JOSE — Facebook's unrelenting quest to open source all of its code and technology stacks continues. The social media juggernaut made this fact abundantly clear to the 1,800 executives and engineers who attended the company's second annual @Scale developers conference yesterday, hoping to learn from leading coders at Twitter, Google, Box, Pinterest, Microsoft and others.Jay Parikh, Facebook's vice president of global engineering and infrastructure, said the community of programmers at t