1) If you like Atlas Shrugged, then maybe you will like "For a new liberty" by Murray Rothbard (the founder of anarcho-capitalism movement): http://mises.org/rothbard/newlibertywhole.asp
That's a deduction of libertarian principles from non-aggression axiom and application of that principles to current problems.
2) If you are interested in philosophy, then read "History of Western Philosophy" by Bertrand Russel. Unfortunately It's written from the socialists point of view, but if you ignore Russels' left views, it's an excellent introduction to the history of philosophy.
Do you really want the market flooded with new software, whose effects aren't well understood?
You can find effective software despite almost no government regulation, why do you think it won't work for drugs? I'm sure a lot of private rating agencies evolve in the such free market of drugs.
Why do you think software business model can't be applied to drug development?
On of the biggest problem with drug research is that it's highly regulated by government, so it's too costly for a small startup. Remove this regulations and you'll get a software-like situation with thousands of startups and new drugs.
Proprietary software does take some of your freedom away due to government granted monopoly (copyright). For example, you are forbidden to to make a copy of it.
A pernicious excitement to learn and play chess has spread all over the country, and numerous clubs for practicing this game have been formed in cities and villages. Why should we regret this? It may be asked. We answer, chess is a mere amusement of a very inferior character, which robs the mind of valuable time that might be devoted to nobler acquirements, while it affords no benefit whatever to the body
