Currently, almost all business people have used social media as a means of promoting and marketing their products/services easily, cheaply and quickly. Especially if it is accompanied by promotions on websites/blogs or other internet tools that have a global nature or very wide reach. So as a businessman, you don't need to doubt the efficacy of social media as the most popular promotional tool, for several reasons, such as having lots of members, it can increase brand awareness, low costs, products will also be increasingly known to the public. There are lots of social media out there, so in your opinion, what social media is the best for business promotion?