Have you seen EMCrit.org? It's the brainchild of Scott Weingart, an ED intensivist in New York City. ED docs like to do things (not just debate and deconstruct them endlessly like us pulmonologist-intensivists). In that spirit, Scott's site is in my opinion more practical, "virtual-hands-on," and skills/procedure-based than PulmCCM.org. Here's a great example -- his great video tutorial on how to assess the inferior vena cava for fluid responsiveness using bedside ultrasound: