Software

Causal and Statistical Reasoning
Software and information for exploring perceptions of causality.
http://www.phil.cmu.edu/projects/csr/

COGENT
A graphical environment for cognitive modeling. Free for the moment, and available for PC and Unix. Developed by Rick Cooper, John Fox and others.
http://cogent.psyc.bbk.ac.uk/

Ikaros
An infrastructure for system level brain modeling
http://www.ikaros-project.org

Life Science Associates
Publisher of psychology software offering programs for cognitive rehabilitation.
http://lifesciassoc.home.pipeline.com/

MLPest, PsychoFit, etc.
Free software (Win/Mac) for analyzing psychophyisical data. By Lewis O. Harvey, Jr.
http://psych.colorado.edu/~lharvey/

Psychophysics Toolbox
Software allows the use of Matlab to do vision research.
http://psychtoolbox.org/

VIAT
A Windows program for demonstrating visual-attention phenomena (freeware)
http://www.uni-konstanz.de/FuF/SozWiss/fg-psy/ag-kog/viat.htm