Useful and Interesting Links about Nudibranch Molluscs
http://scilib.ucsd.edu/sio/indexes/mcdonald.html - A bibliography/searchable database of nudibranch references
http://www.mbl.edu/marine_org/marine_org.php?func=reveal&myID=D155 - A database on marine organisms from the Marine Biological Lab at Woods Hole
http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=6496&lvl=3&keep=1&srchmode=1&unlock - GenBank's page on Opisthobranchs
http://www.calacademy.org/research/izg/nudibranchs/ - Information on nudibranch taxonomy
http://www.rfbolland.com/okislugs/ - Information on Pacific nudibranchs
http://www.seaslugforum.net/ - A site for exchange of information
http://scilib.ucsd.edu/sio/nsf/fguide/branchs.html - Mostly pictures about nudibranchs in Antarctica
http://www.seaslug.com/ - Mostly pictures
http://www.medslugs.de/Opi/Opisthobranchia.htm - about nudibranchs around the world
http://slugsite.tierranet.com/ - Mostly pictures
http://www.cybereef.com/index.html - Mostly pictures
http://www.eperak.com/slugsite/index.html - Mostly pictures
http://www.divegallery.com/ - Mostly pictures
http://www.starfish.ch/reef/nudibranchs-doridina.html - Mostly pictures, some taxonomy