Abstract
The development of social media technologies has had a significant impact on individuals, organizations and societies. However, social media has not only affected people and communities, but also terrorist organizations have started to use social media platforms effectively. The Islamic State of Iraq and Syria (ISIS) is one such group that actively utilizes social media. Social media has played a critical role in formulating and disseminating ISIS’s strategies. Twitter is one of the most effective social media platforms used by ISIS, and it actively uses Twitter in predominantly Muslim countries such as Turkey. In this article, I use a dictionary-based method to compare and analyze 29,419 tweets from English-speaking supporters of ISIS and 40,526 tweets from Turkish supporters of ISIS between 2015 and 2016.