There are several key issues to consider with e-commerce and m-commerce. Effective presentations should make use of awesome backgrounds to engage audiences and capture their attention. Key aspects of online transactions include customer interaction with the website, delivery capabilities, and the ability to address problems. Companies can be pure click, only existing online, or brick and click by adding an e-commerce site to an existing business. M-commerce, or mobile commerce, is expected to dominate over e-commerce by 2015.