• ZFIN The Zebrafish Information  Network
• Zebrafish Information Server from the Department of Biological Sciences at the University of South Carolina.
• MGH Zebrafish Web Server
• Zebrafish Microsatellite Map Server, MGH
• Zebrafish Genome Initiative Children's Hospital, Boston
• Zebrafish EST Project at Washington University
• Zebrafish ESTace Database
• Tübingen zebrafish stockcenter
• Tübingen Map of the Zebrafish Genome
• Zebrafish Embryology Tutorial
• An Integrated 3-D Magnetic Resonance Study of Brachydanio Rerio
• Zebrafish Nomenclature Guidelines

pufferfishes:

   Fugu rubripes, a.k.a. Takifugu rubripes or torafugu

• HGMP-RC FUGU Project UK Human Genome Mapping Project Resource Centre Fugu Project will generate a Landmark map of the puffer fish genome. The Fugu fish has essentially the same number of genes as the human genome, although its genome size is only approx. 400 Mb. Data obtained to date is consistent with an overall 8x compression of the Fugu genome compared to the human. 
• JGI Fugu Genome Project 
• Taxonomy of Takifugu rubripes from the NCBI Taxonomy Browser

• Tetraodon nigroviridis Genome Project
• Taxonomy of Tetraodon nigroviridis from the NCBI Taxonomy Browser

 other fishes

• Medakafish Home Page medakafish (Oryzias latipes)
• Tilapia, a group of fishes important to aquaculture around the world. 
• Tilapia Genome Project
• Salmon mapping database, Roslin Institute

Portals

• FishBase A Global Information System on Fishes
• Center for Aquatic Genomics, University of New Hampshire