The idea of a tool giving you access to finding relevant papers in a certain field of research is pretty interesting. Let’s imagine all the papers as a planar graph depicted on a sphere. The edges (arrows/links) of the graphs are keywords or subjects. A certain ‘theme’ (a set of papers) would then be a ‘continent’ on the sphere.
Imagine this thing spinning and showing you the papers you’ve found, then expanding those with related papers - pushing the old papers aside. Found an example done in 2D with d3.js for dependencies https://bl.ocks.org/mbostock/7607535. Would it be interesting to see this in 3D? Maybe in an AR setting. The zooming effect would probably come naturally if the spheres grow to big. I sort of like the concept of several virtual globes for organizing stuff. Not so sure of how I would feel about them in reality though.