The document discusses the growing field of e-commerce and why developing for e-commerce is important. It notes that the e-commerce market has grown significantly in recent years and is expected to reach $3 trillion in sales by 2017. Developing for e-commerce platforms like Magento offers developers challenges to solve across the entire online shopping experience, from browsing to checkout. The Magento platform in particular has over 150,000 businesses using it and has seen a large increase in the number of certified developers.