One of the few online comics to really win my heart is 'Copper' an intermitently published one-pager about a boy and his dog, and their low key adventures, alternately philosophical and surreal.
Copper online: http://www.boltcity.com/copper/
Little Nemo Online: http://www.geocities.com/Hollywood/Hills/3874/nemo.html
About Winsor McCay: http://www.bpib.com/illustrat/mccay.htm
Copper prints: here
Little Nemo Books: expensive, affordable, and a beautiful calendar.