"20% Time" is not Google indigenous. It was borrowed from a company formerly known as Minnesota Mining and Manufacturing, aka 3M, which allowed its employees to spend 15 percent of their work hours experimenting with new ideas, no questions asked. 3M's "15% Time" brought us, among other things, Post-it Notes. Behind this concept (which is meticulously outlined in an excellent book by Ryan Tate called The 20% Doctrine) is the idea of constantly tinkering with potential trends--having a toe in interesting waters in case waves form. This kind of budgeted experimentation helps"