Wish: Journal Article "Package Manager"
A lot of the time, when I end up looking into a subject, I find myself chasing back through the citations. Sometimes, I run into dead-ends. Like today: everyone cites this one paper from 1972, but there's not a copy to be found online. It's locked inside of a Springer journal my university doesn't pay for. One of the things I would like to see happen with the burgeoning open access movement is something that would let me do things like visualize "dependencies" and pull up articles at will, as well as something that would let me do the equivalent of "pkg_add <article>" (or "apt_get <article>" or whatever other sort of package manager suits your fancy) and pull in all the dependencies of a given article, readily localizing an entire "tree" of knowledge. Combined with data visualization and annotation tools, this would be very powerful.