General Systematics Resources
- International Commission for Zoological Nomenclature
- Nomina Insecta Nearctic
- Center for Biological Information Technology
- LUCID Software
- Associated Publishers
Maps, Gazetteers and Georeferencing
- Australia – Geoscience Australia Place Name Search
- Canadian Geographic Names
- Getty Thesaurus of Geographic Names
- GEOnet Names Server (GNS)– non-US
- Google Earth
- Google Maps
- National Geographic Map Machine
- New Zealand Geographic Place Names database
- Perry-Castaneda Library Map Collection
- Terraserver-USA
- Topozone
- U.S. Census Bureau Maps and Cartographic Resources
- U.S. Census Bureau U.S. Gazetteer
- US Geographic Names Information System (GNIS)
- Worldwide Gazetteer