This study aims to explain the importance of a website that plays a vital role in a business. This study used the observation method that has been observed related to the use of knowledge management in companies that implement a knowledge management system in it. Entrepreneur surely will be success with some appropriate strategies and promotions. The results of this study are Entrepreneurs must take advantage and the opportunities in choosing the right way to promote as well as use the right platform, either using conventional methods or using media websites. The conclusion is that using a website will help entrepreneurs in developing their business by expanding the reach of it. Therefore, the website is a significant role in doing business.