NDMS

'Nearly 50,000' pro-Islamic State Twitter accounts

http://www.bbc.co.uk/news/world-us-canada-31760126

This articles talks about how radical extremist group IS are using social media in order to informally recruit people into their terrorist organisation. A group claiming to support IS Hacked the UC centcom Twitter account as well.There have been 46,000 twitter accounts on behalf of Islamic State, a new case study from the US claims. Most I.S accounts were created in 2014 and towards the end of 2014 around 1,000 IS accounts are being shut down by twitter. 
"Recruitment is not overt on Twitter. Most of that happens on applications like Kik, WhatsApp and Skype, which are peer-to-peer. What they are doing publicly on Twitter is to draw people in."