SPARQL and RDF are very quickly becoming the (Open) standard for linking and accessing database works. Readers of my blog I have been searching the corners of what can and cannot be achieved with this for some time now.
Triggered by some nice visualization work at the BioHackathon on ChEMBL content, I picked up visualization of RDF data (see this 2010 post where I asked people to visualize data using SPARQL). So, and since d3.js is cool nowadays (it was processing.js in the past), so I had a go at the learning curve.
Via Irina Radchenko