Barnacles: Living on the Edge
- Article by Wim van Egmond on the life cycle and development of the barnacle with several interesting photographs.
- http://www.microscopy-uk.org.uk/mag/artjan99/barnac.html

Barnacle
- Information from Wikipedia on this distant relative of crabs and lobsters that lives cemented to rocks or other objects.
- http://en.wikipedia.org/wiki/Barnacle

Introduction to the Cirripedia
- Life history, systematics, morphology, and fossil record of the barnacles and their relatives.
- http://www.ucmp.berkeley.edu/arthropoda/crustacea/maxillopoda/cirripedia.html