R. Frigg and S. Hartmann, Models in Science, Stanford Encyclopedia of Philosophy, (Spring 2006 Edition), Edward N. Zalta (ed.), forthcoming URL =
http://plato.stanford.edu/archives/spr2006/entries/models-science/>.

The Stanford Encyclopedia Entry on scientific modeling is out (since February 27, 2006). The authors are among the organizers of the upcoming conference on Models and Simulations. I expect that many philosophers of mind would benefit from reading their encyclopedia entry (and related literature).