The main services provided by the online websites are the shopping only. They provide the various option to shop online through which you can shop anything. You shop for electronic items, furniture and so on. The main services provided by the online websites are the shopping only. They provide the various option to shop online through which you can shop anything. You shop for electronic items, furniture and so on.1. Search Engine Optimization. I've had a few SEO discussions in recent months with ecommerce merchants. ...2. Selecting New Products. ...3. Merchandising New Products. ...4. Customer Service. ...Monitor Your KPIs.