Nobbin's full name may be David Nobbin (according to his e-mail address) and he was also using the nickname Dr Nobbin. He may be from England.
Nobbin used to have a free site named Nobbin's Cartoon Spanking Page some years ago (in 2001, on www.ultspank.com, and in 2003, under a slightly different URL; at some point of time also on Geocities), but all of these sites are down by now and he seems to have no current Web presence besides a Yahoo! group (see below).
Googleing for Nobbin is difficult because the word Nobbin currently apperars on hundreds of spanking-related link farms (sites that contain nothing but a meaningless heap of keywords and links which are created to manipulate a website's search engine page rank).