Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
KenHub - Use Kenhub to learn anatomy
ImageJ - and Other Health Care
Dr. Najeeb Lectures - World's Most Popular Medical Lectures.
ACD/ChemSketch - ACD/ChemSketch for personal and academic use brings the power of our structure drawing package to your home computer.
osmosis.org - Huge library of clear, concise medical videos