http://www.marinelab.sarasota.fl.us/OCTOPI.HTM (layperson level
knowledge)
http://is.dal.ca/~ceph/faq.html (a FAQ which covers many issues,
though it seems more oriented toward those who want a neat
addition to their fishtank)
http://is.dal.ca/~ceph/rearing.html (this is an essay on rearing
octopodes, which should prove helpful to any would be uplifters)
http://www.ffexpress.com/setverts.htm (is a pet store which sells
brown octopodes (O. vulgaris) for $22 per organism
http://userpage.fu-berlin.de/~palaeont/FOSSCOL.HTM (devoted
to evolution of Octopodes and related phyla)
http://www.siris.si.edu/ (the Smithsonian Institution's bibliography
page which has loads of listings for cephalapods, though the
texts themselves are not accessible there)
Daniel Ust
P.S.: I'm using UPL in all my posts on uplifting from here on, to make
archiving/reference easier.