While theory and concepts in medicine can be learned from textbooks, becoming a good clinician is dependent on seeing patients, thinking through diagnostic uncertainty, listening to colleagues discuss cases and even pitfalls in management. The main way to achieving this is obviously through working shifts. But a great way to supplement this learning is by listening to experienced experts and how they approach cases, and this be done through podcasts, blogs, and social media.
Recent medical education research looking at this question shows that current residents are almost ubiquitously accessing FOAMed resources to supplement their learning. It is often preferred to traditional media methods because of its portability, entertainment value and timeliness.