Basic US map using D3 and topojson. Each state gets colored and neighbors should never be the same color. Also has some mousein/mouseout functions for highlighting the state your cursor is over

A force diagram using a marker to indicate direction. Also demonstrates how to transform the path to have the lines arc.

This one represents a social network diagram. Relationship strength is encoded in the path length, with stronger relationships having shorter path lengths.

Demonstrates how to dynamically add and remove nodes to a force diagram. This was functionality that should seemingly be easy, but was surprisingly hard. Many people were asking how to do this in forums, and this final product is the amalgamation of several commenters half baked (but not really functioning) solutions.

This one demonstrates changes in a social network diagram as relationships are added, removed, and updated. Add nodes by name, add links complete with custom lengths.

Also shows how to add labels to a force diagram.

Binary (up/down) sparkline in D3

Simple but cool

Word cloud implementation.

Example of how to

1. Change style from default. Uses linear scale

2. Alter word size

3. "Fit" it into the screen. At first the words were appearing out of view to the left.

Using D3 to visualize commenting activity in a single depth threaded forum designed for education. Users can post a top level idea, respond to themself, or respond to others. Each Activity has a list of Prompts to respond to, and this gives the teacher a quick overview of user activity.

Demonstrates how to do several things in D3

1. How to create a matrix
2. Multi-Foci force graph, as found here, http://bl.ocks.org/mbostock/1021953
3. Dynamic SVG size based on the size of the input