I found a great internet resource today with access to pathways, genes, RNAi etc all in one place. Cool graphics are linked to information resources. http://cgap.nci.nih.gov/ Here is one example: http://cgap.nci.nih.gov/Pathways/BioCarta/h_pkcPathway Activation of PKC through G protein coupled receptor Please Register or Log in to view the hidden image! I think the graphics make good teaching aids too.