New Technology Is Built on a 'Stack.' Is That the Best Way to Understand Everything Else, Too?
David Hilmer Rex

On StackShare, Airbnb lists over 50 services in its stack, including items as fundamental as the Ruby programming language and as complex and familiar as Google Docs. StackShare itself - the website - lists over 90 items, according to a more liberal usage of the term: Alongside basic infrastructure are communications tools like Skype and a payroll service called Zenefits.