I learned about Affiliate Marketing several years ago from daughter in-law who was setting up her own on-line business. I was 'astounded' to learn that when people clicked on a link on her website that she would be earning money. She told me about Commission Junction and Amazon's affiliate program but she was developing a ecommerce site and selling physical products and I didn't want to buy wholesale and store products and ship them out. But the idea of making money with affiliate products has