Recently learned about the Monarch Initiative. This site might be of interest to those looking for mouse or other models for the study of disease.
From their About Monarch page: "We will provide tools ... to support navigating through multi-scale spatial and temporal phenotypes across in vivo and in vitro model systems in the context of genetic and genomic data. These tools will provide basic and clinical science researchers, informaticists, and medical professionals with an integrated interface and set of discovery tools to reveal the genetic basis of disease, facilitate hypothesis generation, and identify novel candidate drug targets."
Additional of interest:
The DRSC's DIOPT-DIST disease-gene ortholog search tool
The BDSC's pages on Drosophila models of human diseases