• Ants of Costa Rica
• Bill and Emma Mackay's ants of North America
• Antweb
• Australian ants online
• Japanese Ant Image Database
• Identification Guide to the Ant Genera of the Midwest
• Ants of Southeast Asia
• Antbase
• Formicidae of the United States
• Ants of the Southwest
• The Ants of SubSaharan Africa
• Ants of the Washington, DC area
• Ants of the Philippines
• Ponerine.org
• New World Army Ants
• Pheidole of Tiputini
• Pseudomyrmecinae
• California Desert Ants

Neotropical species lists

• List of Neotropical Ants by Fernando Fernandez
• Ants of Cachoeira
• The Ants of Tiputini
• GUIA DE CAMPODE LAS HORMIGAS DE CHILE -- en espanol
• Ants of the Reserva Natural del Bosque Mbaracayú, Canindeyú, Paraguay

Literature and Specimen Searches

• Ant Texts at the Internet Archive
• AntBase Hymenoptera On-Line Database
• AntWeb
• Formis: A Master Bibliography of Ant Literature
• Hymenoptera Name Server
• MCZ Type Database
• NMNH Ant Collection Searchable database
• Psyche
• Smithsonian Ant Type Specimen Image Database
• William L. Brown Memorial Digital Library Searchable database of taxonomy papers