This weekend I began wrapping my head around d3.js and the development combo of javascript editing in SubEthaEdit combined with the Web Inspector, which the author of d3 calls the "best tool ever". Which is especially true combined with subethaedit's live javascript editing.
My big achievement was adding tooltips, and sized nodes and edges.
Dragging is iffy now, because the fat lines obscure the edges.
from
https://groups.google.com/forum/?fromgroups#!searchin/d3-js/selectors/d3-js/bwexq10i08I/TCsjz0qFM28J
nodes[0].firstChild.text = Kenneth nodes[0].firstChild.href=(the URL)