E-commerce requires supporting technologies such as search engine optimization and web marketing. Go to Your Guide to Google Ads. Spend some time reviewing the information at this site on Google Ads. Then write a one-page summary of what you learned. In your paper you should explain it, that is, what it offers, how it works, what are the steps, how to get started, pricing, types of ads, other services, etc. https://support.google.com/google-ads/answer/6146252?hl=en