This paper presents the comparative delivery of promotion through the media currently in well known and its increasing every year like media youtube, twitter and facebook. There is many company should thinking hardly because of they should choosing the right media to delivered their information about promotion, so that the customer who seen that’s advertising on the media will automatically choosing and buying our product. This research object is PT Samsung who actively create ads in the three media and respondents we used is customers who have seen an advertising Samsung in the three media. This research method is descriptive quantitative. Total respondents 100 people and spread all over the city of Bandung. The analysis technique used is regression and confirmatory factor analysis with software lisrel. The Result we find that variable youtube and facebook has significant influence, but twitter didn’t significant influence for purchasing decision decisions. As simultaneously, independent variables have an influence of 25.3% on purchasing decisions
Key word : Promotion, Samsung, facebook, Youtube, Twitter,