With globalization, the dimensions of trade in the national and international fields have expanded considerably. It has become a necessity to be involved in the developing virtual world and to use communication technologies effectively efficiently in this environment for all sectors. Therefore, the technological infrastructure used in e-commerce has become a structure which can differ in terms of the way in which system tools are used and their functions. Recently, e-commerce and mobile marketing are now widely used in the tourism sector. Kuşadası is one of the very important touristic centers in Turkey. We would like to make a detection for Kuşadası on this study. E-commerce, mobile marketing, e-tourism and mobile tourism concepts are mentioned and the case of Kuşadası is used in the context of using e-commerce applications in tourism promotion.