Simple explanation of the adhesion and cohesion of water.
Interactive animation on amino acids and protein structure.
Page from blobs.org which describes protein structure.
Lots of information and resources on Fat from online Big Picture magazine.
From Wellcome trust Big Picture series, pdf. magazine on proteins with additional animations and resources.
Game from Spongelab site, which involves joining together monomers to form biological molecules, in the form of a gem game.