Gordon Ramel's Protura Page: An introduction to the biology, classification, and ecology of the Protura.
Japanese Protura: Checklist and key.
Protura: Introduction from the Tree of Life Project.
Protura of New Zealand: Introduction, checklist, and biology.
Protura of North America: Systematic checklist.
Proturans (Coneheads): Introduction from John R. Meyer's Entomology class.
Proturans - Protura: Illustrated introduction by Christopher Tipping, University of Florida.