1) ISIS uses social media like Twitter, Facebook, and Instagram to spread propaganda, recruit supporters, and intimidate enemies.
2) ISIS has a coordinated social media campaign using thousands of individual fighter accounts and an app called "Dawn of Glad Tidings" to automatically post tweets.
3) The social media campaign is effective at spreading ISIS's message and intimidating image to help recruit thousands of foreign fighters, including over 100 Americans, to join the conflict in Syria.