This is a follow up post about the free book/audioboo Free: The Future of a Radical Price. Click that link to get it free.
One of the great things about the Free ebook (Free to read online anyway) are the SIDEBARS that tell you how so many Free Promotions were structured.
You can see and read the list here: Sidebars
How Can Air Travel Be Free?
How Can A DVR Be Free?
How Can Trading Stocks Be Free?
How Can Something Be “FREE” In One Format But Sell In Another?
You can click through Sidebars and see them all.
So what could you be doing with “FREE”?