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Twitter-HashtagsAs the Free Open Access Meducation (FOAM; #FOAMed) movement has continued to flourish over the past few years, Twitter has become a vital method for disseminating/discussing educational and clinical content. We thought it would be interesting to see who is being ‘followed’ on Twitter in the FOAM world. Certainly, the metric of Twitter followers does not necessarily correlate with quality. And, it misses newcomers to the FOAM scene and those with a more focused area of expertise/interest. We are more interested in understanding the landscape such as who is involved, geographic locations, areas of expertise, and association with blogs/podcasts.

Our search strategy was simple:

  1. Twitter was searched for all users with #FOAMed, #FOAMcc, #FOAMtox, #FOAMped, #FOAMems, #FOAM4GP, and/or #FOAM in his/her Twitter profile. *
  2. This was cross-referenced with Dr. Mike Cadogan’s (@sandnsurf) FOAMed Twitter list (920 members as of August 28, 2014).

Most Followed #FOAMed Twitter Users **

RankTwitter NameTwitter HandleLocation ***FollowersJoined Twitter
1Mike Cadogan@SandnsurfPerth, Western Australia14,862Oct 2008
2Scott Weingart@EMCritNew York, NY13,039Apr 2009
3Radiology Signs@RadiologySigns10,095May 2012
4EMS 12-Lead@EMS12LeadHilton Head Island, SC9,164Mar 2010
5Matt@TheMattMakLondon via Liverpool8,651Mar 2011
6Chris Nickson@PrecordialThumpMelbourne, Australia8,171Nov 2008
7Michelle Lin@M_LinSan Francisco, USA7,416Apr 2009,328Feb 2013
9Haney Mallemat@CriticalCareNowBaltimore, USA6,600Nov 2010
10Minh Le Cong@ketaminh6,079Nov 2011
11Cliff Reid@CliffReidSydney5,987Mar 2009
12ED Doc@4hrEmergencyDocLondon5,393Oct 2010
13FOAM Highlights@FOAM_HighlightsPhiladelphia, PA5,325Dec 2012
14Bryan D Hayes@PharmERToxGuyBaltimore, MD5,062Feb 2012
15IntensiveCareNetwork@I_C_NSydney, Australia5,055Feb 2011
16Matt and Mike@UltrasoundPodMatt (KY) & Mike (UT)4,862Aug 2011
17Rob Orman@EmergencypdxSnowmass, CO4,770Jun 2010
18Simon Carley@EMManchesterManchester4,649Feb 2009
18Rob Rogers@EM_Educator4,649Jun 2009
20The SMACC Team@SMACCTeamGlobal4,417May 2013
21Steve Carroll@EMBasicSan Antonio, TX4,144Dec 2011
22Joe Lex@JoeLex5Philadelphia3,974Jul 2012
23Ryan Radecki@EMLitofNoteHouston, TX3,920Jun 2011
24Graham Walker@GrahamWalkerSan Francisco, CA3,816Jul 2007
25Michelle Johnston@EleytheriusPerth3,751Feb 2010
26Pam Nelmes@Pam007NelmesCornwall, UK3,696Sep 2010
27Andy Neill@AndyNeillIreland3,619May 2011
28Chump@BungeeChump3,550Mar 2010
29Steven W. Smith@SmithECGBlogMinneapolis3,491Jun 2011
30Leon Gussow@PoisonReviewChicago, IL3,303Nov 2009

* Those without one of the FOAM hashtags in his/her Twitter profile are not included on this list, even if they produce excellent, free content (eg, Dr. Amal Mattu, @amalmattu).

** Information current as of August 28, 2014.

*** Locations were taken directly from Twitter profiles.


  • Not too surprisingly, the father of FOAMed, Dr. Mike Cadogan, leads the way followed closely by Dr. Scott Weingart.
  • This list, although only a small subset, seems to be a microcosm of the larger FOAM community.
    • Worldwide representation from Australia to the UK to the USA.
    • A variety of healthcare professional representation including physicians, nurses, pharmacists, and EMS providers.
    • Subspecialties within Emergency Medicine are also well represented including critical care, ECG, medical education, pharmacy, radiology, toxicology, and ultrasound.

Original July 14, 2014; Updated August 28, 2014

Bryan D. Hayes, PharmD, FAACT

Bryan D. Hayes, PharmD, FAACT

ALiEM Associate Editor
Clinical Assistant Professor, EM and Pharmacy Practice
Clinical Pharmacy Specialist, EM and Toxicology
University of Maryland