Press relations, in a broader term media relations, is one of the major practice fields of public relations discipline. Nowadays corporations have the chance to present up-to-date, easily accessible and vast information to the members of the media via internet. Corporations can share informative materials online such as the current press information, press archive, business-annual reports, contact information that media members can communicate, the list of senior-executives and their curriculum vitas, various photographs of the corporation, publications of the corporation, etc. Members of the media can examine the essential ones and use them in their investigations, and write news stories. The aim of this study is to define to what extent large industrial corporations utilize internet while conducting their relations with the media and to reveal what kind of informative materials they allow for press on their websites. Turkey's all industrial enterprises forms the population of this research, whereas the enterprises concatenated in the findings of ICI's (Istanbul Chamber of Industry) Study of 500 Largest Industrial Organizations of Turkey 2013 were defined as the sample. This study, which utilizes descriptive method, analyzes the web sites of 500 Largest Industrial Organizations of Turkey with content analysis technique. In the conclusion of this study, it is exhibited that Turkey's largest corporations mostly prefer to share the place of activity, areas of activity, product information and the history of the corporation, and it is ascertained that 50,2% of the corporations have online press rooms on their websites.