Internet of Things (IoT) is an increasingly important technology. Understanding the attitudes toward IoT may provide insights into the future development and management of IoT and the management of online platforms. In this paper, we examine online platform users’ attitudes toward IoT, by analysing Twitter data. We analyse the backgrounds of Twitter users associated with different attitudes, including the frequency of using Twitter and the geographical location of posts (i.e., called “tweets”). The research findings suggest that most tweets reflect positive attitudes toward IoT and concentrate on information technologies. Some users expressed concerns with security and privacy issues. Most Twitter users surveyed come from coastal areas of the USA.