No-Library (pure JS), HTML, CSS, JavaScript
D3 3.x, HTML, CSS, JavaScript
with explanation on function(d,i,j)...nested selections
http://stackoverflow.com/questions/22113811/radiating-spokes-off-of-a-circle
http://stackoverflow.com/questions/21457900/how-to-align-text-uniformally-in-the-radial-graph
AngularJS 1.1.1, HTML, CSS, JavaScript
Mootools 1.4.2, HTML, CSS, JavaScript