The aim of this study was to determine the impact of social media on news production in Nigeria with a focus on journalists within Lagos metropolis. To achieve this aim, Critical reviews to related literature were made. Relevant theories were used to gratify the study. Quantitative research design was used in which cross-sectional survey method was adopted while the data collection instrument was questionnaire. Chi-square was the method used in analyzing the data gathered. Subjects were drawn from journalists in Lagos metropolis in Lagos State, using the purposive sampling technique. Three research questions and one alternative hypothesis guided the study. Research findings showed that social media have enhanced the productivity of journalists in Lagos state and a great number of journalists use them to source for news among other things. To this end, that it is recommended that journalists should carry out a research on the available social media tools in order to identify reliable and trustworthy social networking sites and use them to discharge their journalistic duties. Finally, the following suggestion was made for further studies, that study should be carried out on the role of social media in sustaining democracy, advertising, public relations and public opinion polls.