This app is derived from a word-association study from the University of South Florida. It was created from interviews with about 6,000 subjects (more information here).
To use, enter words separated by commas.
When you press go, the application finds the first-degree associates of those words, keeping only the results which are linked to at least 2 of your input words. If one of your words is not within 2° of the other words, the application calls on a c++ app that finds intermediary nodes. It then runs the algorithm again, sending the data to Graphviz for rendering.