Who uses ACT-R for what?
ACT-R is used primarily to model experimental psychology data. For example, researchers at CMU, George Mason, and RPI work on this topic. ACT-R has also been used to model behavior in synthetic environments. Researchers at CMU have worked on this. You can also browse the ACT-R workshop talks and proceedings to get an idea of who was working on what, as well as the published and contributed models on the main web site. There are further examples in the FAQ as well. More projects are going on, but we are waiting for further comments in this section.