REBEL EM has primarily been a clinical blog focusing on critical appraisal of research, but now we are proud to introduce REBEL Core, an initiative to improve discussion of core content in emergency medicine/critical care. Free Open Access Medical Education (FOAMed) has long been dedicated to discussing current literature to shorten knowledge translation. However, if all you use is FOAMed, then you will have “swiss cheese knowledge”, due to the lack of having foundational knowledge. The entire breadth of emergency medicine is not currently covered by FOAMed with a disproportionate representation of critical care topics (i.e. ECG, Ultrasound, Resuscitation, Procedures). REBEL Core will continue to discuss the foundational knowledge necessary in all aspects of emergency care.