[eng] The study of this work is to show and analyze the importance that two key agents have today together and separately as the tourism sector that moves more than 1.4 billion people a year and social mediathat currently have 3.8 billion usersand increasingby day.We call them key agents since the tourism industry is indispensable to the economy given the great contribution it makes to the world's GDP in addition to generating 1 out of every 4 new jobsand on the other hand, social mediahave become a key tool not only for consumers, but also for companies. In the specific case of the tourism sector in termsof promoting new destinationsand to create stronger ties with costumers.