Hu and Racherla state that, “a knowledge domain is a particular field of study that creates a common ground and a sense of the development of a common identity by affirming its purpose and value to members and stakeholders,” (302). The knowledge domain can be established through formal or informal networks. Indeed, such networks exist in all social institutions and organizations and create a platform upon which members can come together and share whatever knowledge they have. The main focus of this paper is to annotate past studies that have been carried out on knowledge sharing through different networks including pre-university students, the hospitality field, and the human resource management profession. The major theme emanating from these studies is that social networks play a crucial role in the sharing and dissemination of knowledge among members. Full reference of the article                        Hu, Cark, & Pradeep Racherla. ‘Visual representation of knowledge networks: A social network analysis of hospitality research domain,’ International Journal of Hospitality Management27 (2008): 302-312.                                                                                                                                                                                                                               Type of article                                      Research-based article                                                                                                                                                                                                                                                                                                                                                                                                                  Aim/purpose of the article                           To assess and plot the system of partnership among scholars in the discipline of hospitality business research; to recognize major researchers according to their research hubs, and to show the significance of partnership among different researchers within the hospitality field.                                                                                                                                                  Sample, data collection methods, and data analysis   Four scholarly journals in the hospitality field were used as samples. The data collected from the sample involved information about their article title, names of authors, associations, publication date, journal name, keywords, and abstract. Descriptive analysis (frequency distribution) and the social network analytical software, Pajek, were then used to analyze the data.                                                  Findings of research                                 Using the theory of social network analysis, Hu and Racherla found that the acquisition of knowledge is affected by social structure because of the existence of cohesive sub-networks of scholars who share knowledge by co-authoring research studies (308).                                                                                                                                                                          Relationship of the article to Knowledge Management  The article is related to knowledge management in the sense that it supports the fact