The FORTUNE Business Innovation blog is pleased to announce the third of its “Get Back in the Box” contests. Douglas Rushkoff, a globally-recognized thought leader on media, marketing and Internet culture, has created a third reader contest based around the open source model of innovation as described in his forthcoming book Get Back in the Box: Innovation from the Inside Out:

“The companies most threatened by the open source model of innovation are the ones that see their greatest innovations as behind them. If you’ve already invented your best cell phone, mop, marketing methodology, or catcher’s mitt, you will spend more time guarding your secrets than coming up with new ones. Even if you enjoy a competitive advantage today, you carry on with the lingering knowledge that it’s only a matter of time before someone else figures out a better way to do what you do. To stave off this inevitability, you lock down your advantage and processes as much as possible and maintain a closed source enterprise — even to yourself.”

Based on that excerpt from Rushkoff, “What examples can you give of a non-computer-related business that has, nonetheless, opened itself up to collaborative innovation?” For example, did you know Procter and Gamble has an entire division now dedicated to collaborating with other companies on new technologies? That’s how they got Mr. Clean Magic Eraser!

Submit your selections over the next few days for your favorite example of an open source innovation model and you could win a free, autographed copy of Get Back in the Box: Innovation from the Inside Out by Douglas Rushkoff. The most innovative entry, as judged by Douglas, is the winner. That’s all you need to know – so start submitting today (either by adding comments to this blog entry or sending email responses with “CONTEST” in the subject line to: basulto@gmail.com).

John Winsor, author of Beyond the Brand and a contributor to the BrandShift blog, recently published a new book, SPARK: Be More Innovative Through Co-Creation, that offers a fascinating inside look at how top executives at companies like Nike, Patagonia, Levi Strauss & Co. and Miller Brewing Company have mapped out successful innovation strategies. In total, the book includes 16 profiles of marketing and branding experts who have discovered their own personal secrets to innovation. For all of them, though, meaningful innovation came about through a process of co-creation with their customers, partners and employees.

At times, the number of perspectives and insights presented in the book can be a bit overwhelming - but the book is more like a portable resource full of anecdotes, innovation tips and pointers to useful resources, all tied together by the broad theme of “co-creation.” In the intro to the book, John even asks readers to “write in it. Draw in it. Tape stuff to it. Rip it up!” - so the book is obviously intended as a living, breathing resource. At the end of each innovation profile, in fact, there’s a list of 10-15 resources provided by John to guide you on the path to co-creation and innovation (as well as some blank space to doodle, draw or brainstorm).

As a result, each chapter offers a grab bag of innovation delights. For example, in the chapter featuring Johnnie Moore (a London-based branding consultant who also contributes to the BrandShift blog), John includes citations from the journal Mechanical Engineering, a link to the Website Improv Across America, and a reference to the New Yorker Book of Business Cartoons. In the section about Rob Bon Durant (director of brand development at Patagonia), John includes (among other items) an article from the Harvard Business Review, a link to the Treehugger website, and a reference to a playful book called Work Like Your Dog: 50 Ways to Work Less, Play More and Earn More.

If you’re putting together a PowerPoint presentation about innovation anytime soon, these end-of-chapter resource guides can become a goldmine of cool ideas and links. If you’re interested in the book, there’s apparently also a companion SPARK blog.