Free Open Access Med(ical edu)cation for critical care practitioners.

Free Open Access Med(ical edu)cation refers to an online community of knowledge relating to medicine. Originating from practitioners in emergency medicine, it has since spread to critical care, internal medicine, prehospital medicine, paediatrics, and allied health professionals and continues to grow at an advanced rate. Weblogs ('blog' for short), emails, social media (in particular Twitter), recorded audio material ((podcasts), and video material are all produced on a daily basis and contribute to the continual professional development of trainees and consultants worldwide. In this article, we explain its background, rise to prominence, and explore some of its controversies.