The most comprehensive and authoritative global index of species currently available, the Catalogue of Life consists of a single integrated checklist and taxonomic hierarchy for all the world's species.

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The Global Biodiversity Information Facility (GBIF) was established by governments in 2001 to encourage free and open access to biodiversity data, via the Internet. Through a global network of countries and organizations, GBIF promotes and facilitates the mobilization, access, discovery and use of information about the occurrence of organisms over time and across the planet.

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The goal of the Encyclopedia of Life (EOL) is to compile and make available over the Internet as much information as possible about the world’s species of plants, animals and microorganisms.

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LifeWatch is a European research infrastructure in development. The first services to users are planned for 2013.

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The European Nucleotide Archive (ENA) provides a comprehensive record of the world's nucleotide sequencing information, covering raw sequencing data, sequence assembly information and functional annotation.

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Provides taxonomic, conservation status, and distribution information on taxa that are facing a high risk of global extinction.

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BOLD systems is advancing species identification and discovery by providing an integrated environment for the assembly and application of DNA barcodes.

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