[Retraction 14 December 2007: Following a consideration of comments by Prof Ian Musgrave (below), I must retract my recommendation of this table – upon re-examination, I should have been much more critical of the information provided.)
The Wall Street Journal online has a nice general information table comparing and contrasting small molecules vs. proteins used as drugs. Biotechnology products like insulin or erythropoeitin protein molecules whereas classic drugs like the statins or antiinflammatory drugs are termed “small molecules.” In truth, both classes are pharmaceuticals so I would’ve used different headers: many biotechnology products are indeed pharmaceuticals.
Being a business newspaper the Journal also links to the main players in each field although many companies develop both kinds of drugs.
A nice quick primer for the average Terra Sig reader.