Social media has changed not only people's lives but also business's life. The internet has transformed the way companies do their business. Most companies create an entire business function commonly referred to e-business, which is the use of internet and information technology in a company's operations. Social media is not only a communication tool for entertainment. It is also an important part of marketing strategies in firm's business life. Therefore, firms can use social media as a strategic marketing tool to help firms gain a competitive advantage, so social media and social media marketing are gaining importance all over the world, especially from marketers and researchers in order to understand how social media works and to understand its techniques.

The third millennium witnessed tremendous development in information technology, internet and the various applications that came with that in the field of human resources management and the increasing use of individuals in searching for jobs via the internet. That accompanied by the emergence of sites that provide job seekers with all the information they want about vacancies and jobs without effort or difficulty. All of these changes have become closely related to the relationship between the applicant and the organization. So this study aims to provide a useful conceptualization of Electronic Recruitment (e-recruitment); definition, Determinants, Advantages and The relationship between e-recruitment and other research variables.

The Internet is an important source for data and knowledge; hence, it currently plays a significant role in our daily lives. Internet applications have contributed tremendously in facilitating our work in terms of cost and effort cutting, expanding markets, changing the methods used to carry out activities, different applications, changing the quality required by customers, and consumer desires and behavior. Examples of these applications are online marketing, e-mail marketing, home business, and mobile marketing. E-research can also be considered as an Internet application. In fact, there are many terminologies related to this concept such as Internet research, online research, and Web research. This chapter provides an illustration of some of the new marketing applications of the Internet.

Tourism is an attractive tool for economic development, especially in the developing world because tourism industry is considered as one of the largest and the most diverse industries in the world and it is one of the fastest growing sectors of the global economic. Many countries are seeking a way to improve their economic conditions; they see tourism as a major source of income, employment, and development of economic. The World Travel & Tourism Council (WTTC) researches assesses that the Travel & Tourism industry's contribution to GDP and jobs for 184 countries and 24 regions and economic groups in the world1.

Social media has changed not only people's lives but also business's life. The internet has transformed the way companies do their business. Most companies create an entire business function commonly referred to e-business, which is the use of internet and information technology in a company's operations. Social media is not only a communication tool for entertainment. It is also an important part of marketing strategies in firm's business life. Therefore, firms can use social media as a strategic marketing tool to help firms gain a competitive advantage, so social media and social media marketing are gaining importance all over the world, especially from marketers and researchers in order to understand how social media works and to understand its techniques.