Model Organism Databases are repositories for information on those organisms with a wealth of biological data that make them attractive to study as models of other species (including humans) that are more difficult to study directly . Historically, these model organism databases include the handful of species with extensive genomic research data, such as the NIH model organisms.
With the barriers to genome sequencing--particularly expense and time--rapidly coming down, collecting genetic and genomic data is no longer restricted to a small set of organisms. The acronym "GMOD" has been extended to include Multiple organism and My organism databases, so that the MOD in GMOD can apply to any organism or genome database projects.
A list of some of the databases and organizations using, contributing to, and developing GMOD components can be found on the GMOD Users page.