In the following TED-talk, cancer researcher Jay Bradner talks about the work in going on in his lab. How they approach understanding the way cancer works, how they proceed in designing potential drugs, and... how they share their findings for free with whoever wants to know. He explains how making a proto-drug freely available has helped in spurring a fast development for a potential treatment for a rare type of cancer (and which, incidentally, might prove useful in the fight against other cancers as well), currently entering human trials.      
So, instead of carefully guarding their work and shrouding it in secrecy, they shared it. With great results. Open-sourcing drug development? Kudos.