Questions about echinoderm development? Use in the classroom? Cool embryos in general? Then check out these sites.
The Society for Developmental Biologyhas many research and education links from its homepage. http://www.sdbonline.org/
The Sea Urchin Embryology site is an award-winning web based educational resource, with information and lab exercises designed for use by high school, junior college and lower division college teachers. http://www.stanford.edu/group/Urchin/
Information on the sea urchin genome project (including all BAC-end STC data, EST data, arrayed library lists and repetitive sequence information) can be found on the S. purpuratus Genome Project Website. http://sea-urchin.caltech.edu/genome/