This flashy site from Garland Publishing is intended as a companion to their textbook Immunobiology 5th edition, but should be useful to all students of molecular biology. The site presents a color cartoon animation with accompanying captions on each immunological action -- antigen recognition, NF-ATc activation, and cytokine signaling, to name a few . Users can control the animation speed and look up topics using a text index or a side bar of thumbnail images. Another sidebar gives the key to what symbols in the animations represent (t-cells, MAP proteins, transcription factors, etc.). These nifty visuals provide a great study aid for college-level students.