New icons are starting to appear in PubMed that take you directly to free full text publications uploaded in an institutional repository (IR). Here’s an example:
This one is from Deep Blue, University of Michigan’s Library IR. When you see it on a publication like this one on Ebola, you can get free access to the publication there.
The icons only appear when there is no free full text available from the journal or PMC (PubMed Central). So far, only 4 IRs with eligible publications are participating – you can see which ones they are here. They already expand access to around 25,000 publications.
The NCBI program that enables this is LinkOut. You can read more about it in the NLM Technical Bulletin. IRs can apply by email to join LinkOut. And if you are an author at an institution with a repository, support your IR and enable more people to read your work.