L'innovation chez Google

There's a reason we talk about 70/20/10, where 70% of our resources are spent in our core business and 10% end up in unrelated projects, like energy or whatever. [The other 20% goes to projects adjacent to the core business.] Actually, it's a struggle to get it to even be 10%. People might think we're wasting money or whatever. But that's where all our new stuff has come from.

In our first founders' letter in 2004, we talked about the risk profile with respect to doing new innovations. We said we would do some things that would have only a 10% chance of making $1 billion over the long term. But we don't put many people on those things; 90% work on everything else. So that's not a big risk. And if you look at where many of our new features come from, it's from these riskier investments.

Larry Page, Google (Fortune, Mai 2008)