Madreporite Nexus: Starfish tales and science by Jonathan Dale.
Natural Perspective: Starfish (Class: Asteroidea): Photos and a brief description of starfish characteristics.
Ophiuroidea: News and information about brittlestars.
Photos of Serpent Stars: Photos of Ophiuroidea from the Indo-Pacific, with text about habitat, behavior, and characteristics.
Slime Star: A photograph and brief description of the sea star, Pteraster.
Stelleroidea: They appeared in Ordovician seas more than 450 million years ago...
The Ophiuroidea: A brief introduction to modern and ancient brittle stars by UCMP Berkeley.