Monarch Migration
- Article discussing the spectacular flight of millions of individual butterflies to the wintering grounds of their ancestors.
- http://whyfiles.org/006migration/

Monarch Monitoring Project
- Results of weekly road censuses of Danaus plexippus, conducted every fall in Cape May, New Jersey, USA.
- http://www.concord.org/~dick/mon.html

Life Cycle of the Monarch Butterfly
- A slide show showing all stages from egg to adult.
- http://annwright.1afm.com/

Monarchs over Chincoteague
- Monarch migration research project at Chincoteague National Wildlife Refuge in Virginia with survey data, habitat information, and maps.
- http://users.erols.com/robgibbs/monarch/

Monarch Watch
- Dedicated to the study of the monarch butterfly and its yearly migration.
- http://www.monarchwatch.org/

Monarch Lab
- Research projects and information about the monarch butterfly and its yearly migration.
- http://www.monarchlab.umn.edu