al6x/index.html

## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-type" content="text/html; charset=utf-8">
    <title>Mobile Patent Suits</title>
    <script src="http://d3js.org/d3.v2.js"></script>
    <link href='style.css' rel='stylesheet' type='text/css' />
  </head>
  <body>
    <script src="script.js"></script>
  </body>
</html>

## script.js
// http://blog.thomsonreuters.com/index.php/mobile-patent-suits-graphic-of-the-day/
var links = [
  {source: "Unix", target: "AWS", type: "licensing"},
  {source: "MySQL", target: "Unix", type: "licensing"},
  {source: "NGinx", target: "Unix", type: "licensing"},
  {source: "NGinx", target: "FileStorage", type: "licensing"},
  {source: "WordPress", target: "MySQL", type: "licensing"},
  {source: "WordPress", target: "NGinx", type: "licensing"},
  {source: "WordPress", target: "PHP", type: "licensing"},
  {source: "WordPress", target: "FileStorage", type: "licensing"},
];

var nodes = {};

// Compute the distinct nodes from the links.
links.forEach(function(link) {
  link.source = nodes[link.source] || (nodes[link.source] = {name: link.source});
  link.target = nodes[link.target] || (nodes[link.target] = {name: link.target});
});

var w = 800,
  h = 500;

var force = d3.layout.force()
  .nodes(d3.values(nodes))
  .links(links)
  .size([w, h])
  .linkDistance(60)
  .charge(-300)
  .on("tick", tick)
  .start();

var svg = d3.select("body").append("svg:svg")
  .attr("width", w)
  .attr("height", h);

// Per-type markers, as they don't inherit styles.
svg.append("svg:defs").selectAll("marker")
  .data(["suit", "licensing", "resolved"])
  .enter().append("svg:marker")
  .attr("id", String)
  .attr("viewBox", "0 -5 10 10")
  .attr("refX", 15)
  .attr("refY", -1.5)
  .attr("markerWidth", 6)
  .attr("markerHeight", 6)
  .attr("orient", "auto")
  .append("svg:path")
  .attr("d", "M0,-5L10,0L0,5");

var path = svg.append("svg:g").selectAll("path")
  .data(force.links())
  .enter().append("svg:path")
  .attr("class", function(d) { return "link " + d.type; })
  .attr("marker-end", function(d) { return "url(#" + d.type + ")"; });

var circle = svg.append("svg:g").selectAll("circle")
  .data(force.nodes())
  .enter().append("svg:circle")
  .attr("r", 6)
  .call(force.drag);

var text = svg.append("svg:g").selectAll("g")
  .data(force.nodes())
  .enter().append("svg:g");

// A copy of the text with a thick white stroke for legibility.
text.append("svg:text")
  .attr("x", 8)
  .attr("y", ".31em")
  .attr("class", "shadow")
  .text(function(d) { return d.name; });

text.append("svg:text")
  .attr("x", 8)
  .attr("y", ".31em")
  .text(function(d) { return d.name; });

// Use elliptical arc path segments to doubly-encode directionality.
function tick() {
  path.attr("d", function(d) {
  var dx = d.target.x - d.source.x,
    dy = d.target.y - d.source.y,
    dr = Math.sqrt(dx * dx + dy * dy);
  return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
  });

  circle.attr("transform", function(d) {
  return "translate(" + d.x + "," + d.y + ")";
  });

  text.attr("transform", function(d) {
  return "translate(" + d.x + "," + d.y + ")";
  });
}

## style.css
path.link {
  fill: none;
  stroke: #666;
  stroke-width: 1.5px;
}

marker#licensing {
  fill: black;
}

path.link.licensing {
  stroke: black;
}

path.link.resolved {
  stroke-dasharray: 0,2 1;
}

circle {
  fill: #ccc;
  stroke: #333;
  stroke-width: 1.5px;
}

text {
  font: 10px sans-serif;
  pointer-events: none;
}

text.shadow {
  stroke: #fff;
  stroke-width: 3px;
  stroke-opacity: .8;
}
	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-type" content="text/html; charset=utf-8">
	<title>Mobile Patent Suits</title>
	<script src="http://d3js.org/d3.v2.js"></script>
	<link href='style.css' rel='stylesheet' type='text/css' />
	</head>
	<body>
	<script src="script.js"></script>
	</body>
	</html>
	// http://blog.thomsonreuters.com/index.php/mobile-patent-suits-graphic-of-the-day/
	var links = [
	{source: "Unix", target: "AWS", type: "licensing"},
	{source: "MySQL", target: "Unix", type: "licensing"},
	{source: "NGinx", target: "Unix", type: "licensing"},
	{source: "NGinx", target: "FileStorage", type: "licensing"},
	{source: "WordPress", target: "MySQL", type: "licensing"},
	{source: "WordPress", target: "NGinx", type: "licensing"},
	{source: "WordPress", target: "PHP", type: "licensing"},
	{source: "WordPress", target: "FileStorage", type: "licensing"},
	];

	var nodes = {};

	// Compute the distinct nodes from the links.
	links.forEach(function(link) {
	link.source = nodes[link.source] \|\| (nodes[link.source] = {name: link.source});
	link.target = nodes[link.target] \|\| (nodes[link.target] = {name: link.target});
	});

	var w = 800,
	h = 500;

	var force = d3.layout.force()
	.nodes(d3.values(nodes))
	.links(links)
	.size([w, h])
	.linkDistance(60)
	.charge(-300)
	.on("tick", tick)
	.start();

	var svg = d3.select("body").append("svg:svg")
	.attr("width", w)
	.attr("height", h);

	// Per-type markers, as they don't inherit styles.
	svg.append("svg:defs").selectAll("marker")
	.data(["suit", "licensing", "resolved"])
	.enter().append("svg:marker")
	.attr("id", String)
	.attr("viewBox", "0 -5 10 10")
	.attr("refX", 15)
	.attr("refY", -1.5)
	.attr("markerWidth", 6)
	.attr("markerHeight", 6)
	.attr("orient", "auto")
	.append("svg:path")
	.attr("d", "M0,-5L10,0L0,5");

	var path = svg.append("svg:g").selectAll("path")
	.data(force.links())
	.enter().append("svg:path")
	.attr("class", function(d) { return "link " + d.type; })
	.attr("marker-end", function(d) { return "url(#" + d.type + ")"; });

	var circle = svg.append("svg:g").selectAll("circle")
	.data(force.nodes())
	.enter().append("svg:circle")
	.attr("r", 6)
	.call(force.drag);

	var text = svg.append("svg:g").selectAll("g")
	.data(force.nodes())
	.enter().append("svg:g");

	// A copy of the text with a thick white stroke for legibility.
	text.append("svg:text")
	.attr("x", 8)
	.attr("y", ".31em")
	.attr("class", "shadow")
	.text(function(d) { return d.name; });

	text.append("svg:text")
	.attr("x", 8)
	.attr("y", ".31em")
	.text(function(d) { return d.name; });

	// Use elliptical arc path segments to doubly-encode directionality.
	function tick() {
	path.attr("d", function(d) {
	var dx = d.target.x - d.source.x,
	dy = d.target.y - d.source.y,
	dr = Math.sqrt(dx * dx + dy * dy);
	return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
	});

	circle.attr("transform", function(d) {
	return "translate(" + d.x + "," + d.y + ")";
	});

	text.attr("transform", function(d) {
	return "translate(" + d.x + "," + d.y + ")";
	});
	}
	path.link {
	fill: none;
	stroke: #666;
	stroke-width: 1.5px;
	}

	marker#licensing {
	fill: black;
	}

	path.link.licensing {
	stroke: black;
	}

	path.link.resolved {
	stroke-dasharray: 0,2 1;
	}

	circle {
	fill: #ccc;
	stroke: #333;
	stroke-width: 1.5px;
	}

	text {
	font: 10px sans-serif;
	pointer-events: none;
	}

	text.shadow {
	stroke: #fff;
	stroke-width: 3px;
	stroke-opacity: .8;
	}