Google "20 percent time" policy for its Employees

http://www.pcma.org/resources/convene/archives/displayArticle.asp?ARTICLE_ID=5074

"To a person, these Googlers pointed to so-called “20 percent time” as a key ingredient of the company’s innovation effort. Put simply, 20 percent time allows Google’s technical people (the vast majority of the company’s employees are engineers) to spend 20 percent of their time working on new ideas large or small. Although it is not a new idea (3M has had a 15 percent rule in place for many years), it is interesting to consider just how vital this mechanism for creativity is to Google’s current success."

Also

http://www.eightypercent.net/Archive/2005/03/24.html

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