Well for me is there is big impact of social media for the growth of our industry.
Nowadays majority of people are using social media like facebook, twiiter etc.
If someone user promote the industry of bitcoin there is a posible that all of his/her friends in social media were read that article or news.
Right, social media such as Facebook and Twiiter have so many users that if you can promote cryptocurrencies on these platforms, you will increase the visibility of cryptocurrencies, such as bitcoin, but now Facebook has banned the advertising of cryptocurrencies.