• 1. Comprehensive Microbial Resource (CMR) Home Page
• Collected information on all publicly available, complete prokaryotic genomes

• 2. Entrez Genome Home
• NCBI. Search the genomes of 6 classes of organisms: Archaea, Bacteria, Eukaryotae, Viruses, Viroids, and Plasmids

• 3. J. Craig Venter Institute (Formerly TIGR)
• Formed by a merger of The Institute for Genomic Research,The Center for the Advancement of Genomics (TCAG), The J. Craig Venter Science Foundation, The Joint Technology Center, and the Institute for Biological Energy Alternatives (IBEA), this site contains all the TIGR databases

• 4. KEGG: Kyoto Encyclopedia of Genes and Genomes
• Organizes genomic info into 4 databases: pathway, ligands, genes, and BRITE (a system and organism level functional relationship database), plus has a genome atlas

• 5. NCBI Map Viewer
• NCBI. Provides a graphical illustration of genes on a genomic map, with options for parallel comparison among species' maps.

• 6. UCSC Genome Browser Home
• UCSC. This site contains the reference sequence and working draft assemblies for a large collection of genomes. It also provides a portal to the ENCODE project.