Below are links to some sites with free clinical content:
Medscape (formerly eMedicine) – general surgery topics – Brief synopses, expandable to substantial topic reviews.
Trauma/burn/wound care – UC San Diego – Excellent video lectures
Trauma/ICU – Vanderbilt – Practice guidelines
Trauma.org – Articles on management by topic, with images.
WebSurg – Outstanding European resource on laparoscopic surgery. Video. Tutorials. Comprehensive.
Surgery 101 – Incredible podcast series from University of Alberta
Burn/ICU from Dr. Guy at Vanderbilt Medical Center – A podcast series dedicated to the teaching of critical care.
Surgery NZ Flashcards – A study aid conceived by Dr James Johnston and his friends during their fourth year of medical school, meant to summarize the medical and surgical core curriculum.