Crustaceans are a diverse and ancient group of arthropods that have long been studied as interesting model systems in biology, especially for understanding animal evolution and physiology and for environmentally relevant studies. Like many model systems, advances in DNA-sequencing methodologies have led to a large amount of genomics-related projects. The purpose of this article is to highlight the genome projects and functional genomics (transcriptomics) projects that are currently underway in crustacean biology. Specifically, we have surveyed the amount of publicly available DNA sequence data (both genomic and EST data) across all crustacean taxa for which a significant number of DNA sequences have been generated. Several ongoing projects are presented including the ecology of invasive species, thermal physiology, ion and water balance, ecology and evolutionary biology, and developmental biology.