Today in Cloud

I’m traveling through Wednesday, but will update the site when opportunities arise (I added a slew of links last night, for example). One quick thought, however: Facebook was able to scale to meet the demands of 500 million users by growing and adapting incrementally. Doesn’t doubling the size of its data center before it’s even operational go completely against this strategy? Or do the physical (and fiscal) realities of operating data centers make overprovisioning data center space the new overprovisioning servers?