RT Journal Article SR Electronic T1 The impact of social media on a major international emergency medicine conference JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 401 OP 404 DO 10.1136/emermed-2012-202039 VO 31 IS 5 A1 Andrew Neill A1 John J Cronin A1 Domhnall Brannigan A1 Ronan O'Sullivan A1 Mike Cadogan YR 2014 UL http://emj.bmj.com/content/31/5/401.abstract AB Objective To report on the presence and use of social media by speakers and attendees at the International Conference on Emergency Medicine (ICEM) 2012, and describe the increasing use of online technologies such as Twitter and podcasts in publicising conferences and sharing research findings, and for clinical teaching. Methods Speakers were identified through the organising committee and a database constructed using the internet to determine the presence and activity of speakers on social media platforms. We also examined the use of Twitter by attendees and non-attendees using an online archiving system. Researchers tracked and reviewed every tweet produced with the hashtag #ICEM2012. Tweets were then reviewed and classified by three separate authors into different categories. Results Of the 212 speakers at ICEM 2012, 41.5% had a LinkedIn account and 15.6% were on Twitter. Less than 1% were active on Google+ and less than 10% had an active website or blog. There were over 4500 tweets about ICEM 2012. Over 400 people produced tweets about the conference, yet only 34% were physically present at the conference. Of the original tweets produced, 74.4% were directly related to the clinical and research material of the conference. Conclusions ICEM 2012 was the most tweeted emergency medicine conference on record. Tweeting by participants was common; a large number of original tweets regarding clinical material at the conference were produced. There was also a large virtual participation in the conference as multiple people not attending the conference discussed the material on Twitter.