I just noticed a very nice blog dedicated to Sankey diagrams. As Phineas mentions in one post: Sankey diagrams are directed graphs. ... (more)

Looking for algorithms to do community detection (there are a bunch from the famous Girvan-Newman algorithm doi:10.1073/pnas.122653799 which seems to have gained popularity through being very simple, effiencet and usually pretty powerfull, through to a method doi:10.1103/PhysRevE.71.046117 by Ziv, Middendorf and Wiggins. I have to admit I don't understand that paper yet, but hope to come back to it.) I was pointed to a paper by Guimera, Sales-Pardo and Amaral. ... (more)