Internet entrepreneurship and online commerce is a relatively new branch of entrepreneurship that is growing from year to year in the 21st century, especially nowadays due to extraordinary circumstances such as a pandemic more and more retailers decide to switch their business partly or even completely to the Internet. This paper shows the importance of using the internet as a way of selling for new and existing entrepreneurs, and places special emphasis on the social network Instagram. According to the latest research, Instagram is the fastest growing social network in the world, which for the company represents a completely new market that offers various competitive advantages. As part of this paper, the research of the topic "changes in consumption caused by the pandemic" was proven. The research has been conducted 6.4.2021. - 6.5.2021. A Google form was used to conduct the research, with 301 respondents. Research has found that consumption habits changed during a pandemic. The vast majority of respondents used the Internet to shop to a greater extent than before the pandemic, and only a small number said they did not increase online shopping. As one of the main reasons for the change in consumption habits, respondents pointed out online shopping for health security reasons.