The objective of this study is to create an understanding of the importance of using Twitter in Lebanese retail companies and how it directly affects the customers’ buying decision. The aim is to define the characteristics, advantages and disadvantages of Twitter that differentiate it from traditional marketing communication channels (TV. Press Ads, Billboards…), and from other Social Media tools (Facebook, Pinterest, Instagram…). It is also about opportunities and challenges Twitter induces for communication. The paper explores the use of Twitter in communicating with current and potential ...