How do Companies Innovate?

This article attempts to solve the long-unanswered question of "Where do good ideas come from?" in a company. It talks about several companies that have sprung up, such as Innocentive, a website dedicated to helping companies find people who can solve problems. Interesting read, but im a big believer of the 80-20 rule, where 20% of the people in a company come up with 80% of the ideas.