A useful tool for those academics who use Mac OS X

These days, all the published academic papers are assigned the DOI identifier. If you type this number after "http://dx.doi.org/" in your browser address bar, you can directly access to the webpage from which you can download the paper.

It's annoying that you need to type "http://dx.doi.org/" every time, however. If you are an Apple user, there is an excellent solution. Check this out.