Free The Data
The USA's main funding agency for health-related research is the National Institutes of Health, with a $30bn annual budget. The NIH has a public access policy that says taxpayer-funded research must be freely accessible online. This means that members of the public, having paid once to have the research done, don't have to pay for it again when they read it – a wholly reasonable policy, and one with enormous humanitarian implications because it means the results of medical research are made freely available around the world.
A similar policy is now being adopted in the UK. On page 76 of the policy document Innovation and Research Strategy for Growth the government states that it is "committed to ensuring that publicly funded research should be accessible free of charge". All of this is great for the progress of science, which has always been based on the free flow of ideas, the sharing of data, and standing on the shoulders of giants.
And not just for health related papers.