I just watched this video from a presentation Seth Godin from O’Reilly Tools of Change for Publishing Conference, New York City, NY, February 11, 2008.

Seth made some very interesting points. My take away from watching this video is simple…

When you are giving something away for free (an idea) people want a souvenir to take as a keepsake. That’s when you can sell them something like a book or t-shirt. Make sure your idea can spread as easily and quickly as possible and you will be able to sell more souvenirs.

Watch the video yourself and see what your take away will be.