Google engineers are encouraged to take 20 percent of their time to work on something company-related that interests them personally. This means that if you have a great idea, you always have time to run with it.
It sounds obvious, but people work better when they’re involved in something they’re passionate about, and many cool technologies have their origins in 20 percent time, including Gmail, Google News and even the Google shuttle buses that bring people to work at the company’s headquarters in Mountain View, Calif.
If your 20 percent idea is a new product, it’s usually pretty easy to just find a few like-minded people and start coding away. But when the thing you really want to work on is to make a broad change across the whole organization, you need something new — you need a “grouplet.”
These grouplets have practically no budget, and they have no decision-making authority. What they have is a bunch of people who are committed to an idea and willing to work to.
Bharat Mediratta as told to Julie Bick, "The Google Way: Give Engineers Room," New York Times, 21 Oct 2007, www.nytimes.com/2007/10/21/jobs/21pre.html