Membrane Transport
 http://www.wiley.com/legacy/college/boyer/0470003790/animations/membrane_transport/membrane_transport.htm

 Easy-to-follow animations of diffusion,facilitated diffusion, and active transport.

IonChannels

http://www.guidetopharmacology.org/GRAC/ReceptorFamiliesForward?type=IC

 Home page for ion channels, withemphasis on drug development.

Diffusion,Osmosis, and the Nernst Equation

http://cr.middlebury.edu/biology/labbook/diffusion/tocpage.htm

 Excellent lab simulations of diffusion,osmosis, and ion transport.

Endocytosis

http://www.biology-pages.info/E/Endocytosis.html

 Overview with many examples ofendocytosis, including receptor-mediated endocytosis of LDL.