These Links only work well in Chrome and Firefox and doesn't work well in Internet Explorer. ------------------------------------------------------------------------ 1. An example of a Within user study comparing node color with interactive stimuli http://vizlab.cs.fiu.edu/visunitonline/ 2. An example of a Between user study with interactive stimuli http://vizlab.cs.fiu.edu/visunitonline_int/ 3. An example of a Between user study with non-interactive stimuli http://vizlab.cs.fiu.edu/visunitonline_unint/