Nowadays, more and more companies start their online presence with social media. There is nothing strange about it - it is there that the largest number of people to whom companies want to reach with their offer reside. Some will choose Instagram, where they can post spectacular photos, while others will choose Twitter, where it is easier to start a conversation with customers. The choice depends on the profile of the company and the goal it wants to achieve. One thing is certain - social media is a mine of business opportunities, if only you know how to use them.