The advertising was first part of the culture of the western world and then spread to the eastern world. This new era ad is the result of the economic liberalization, competition and technological advances. These include an increase in near-universal purchasing power, expanding market and increased competition between producers and manufacturers.

Therefore, the company will no longer be a single camera production, but a process of satisfaction of the consumer. In this context, the power of advertising has become increasingly important and necessary.

Advertising aims to achieve three results :

• Know about a property, product, service,
• to promote the brand and the image,
• Encourage your target audience to buy.

Unlike advertising on search engines, potential customers do not need to have special needs. In fact, the advertisements do not appear in some research, they appear in the news feeds of users, and they appear unintentionally. This type of advertising affects the consumer in the same way as television advertising, that is to say, by the suggestion and awareness. Consumers have probably never be searching for your product or service, but your targeting is so precise that nearly 48% of consumers purchase after seeing your product, service, or brand on social networks.

In other words, if you want to advertise your product or service, introduce a new product, to attract people to an event or to encourage people to undertake a specific action, this is the perfect time to use advertising on social networks for many benefits :

Companies have found that their customers were heavily present on social networks, and have understood that it was essential to use social networks to advertise. This allows for :

• To highlight the presence of your company or your brand ;
• differentiate itself from its competitors by putting in place its qualities ;
• Precisely target public (centres of interest, network, age, sex, location)
• Set up an advertising campaign through these social networks according to three objectives :
• Bring more visibility to your products or information
• Generate visits on the on the website of the company
• Stimulate the conversion of users from the social networks.

The advantage of launch advertising campaigns on the social networks is that the profiles can be configured very accurate and as detailed as possible. Publications sponsored have a good impact on internet users, since they are likely to be of interest. According to a survey, 14 users believe that advertising on the social networks makes brands more human, and gives them a better image. In addition, 19 social media users have made a purchase after seeing an advertisement on the social network. Yet, 83 viewers would like to see fewer advertisements on the social networks because they are "unbearable".