Common Starfish: Asteria rubens
- Offers basic classification information, general biology, habitat preferences, reproduction, sensitivity, and importance.
- http://www.marlin.ac.uk/learningzone/species/LZ_Asteriasrubens.htm

The Starfish Dissection Tutorial
- Detailed pictures of a starfish dissection. Includes other links.
- http://library.thinkquest.org/13008/

The Shape of Life: Echinoderms
- PBS site that describes these organisms, their habitat, and classification. Includes photographs.
- http://www.pbs.org/kcet/shapeoflife/animals/echinoderms.html

Sea and Sky: Echinoderms
- A brief description of the phylum followed by a long list of photographs.
- http://www.seasky.org/reeflife/sea2d.html