Taxonomic Tools
- Biodiversity Heritage Library – Biodiversity literature openly available to the world
- BOLD SYSTEMS – The Barcode of Life Data Systems with DNA barcode library, taxonomy, identification, workbench, and other resources
- Catalogue of Life – The online database of the world's known species of animals, plants, fungi and micro-organisms
- DISCOVER LIFE - Tools to study natural history and track the impact of climate change, invasive species, and other large-scale ecological factors
- Encyclopedia of Life – Global access to knowledge about life on Earth
- ESABII – Taxonomy Training Manuals and species identification sheets for East and South East Asia
- Global Biodiversity Information Facility – Global species occurrences and specimen collections
- Tropicos – Misouri Botanical Garden’s databases
- NCBI Taxonomy Browser – Phylogenetic and taxonomic knowledge from a variety of sources, including the published literature, web-based databases, and the advice of sequence submitters to and outside taxonomy experts
- Online Taxonomic Key Application – Royal BC Museum, Canada
- Artportalen.se - Swedish Species Gateway
- ID guides for marine organisms – The marine life information network
- Lucid identification key tools
- EDIT platform for cybertaxonomy
- WORMS – The world register of marine species