Well SuperFerret, it was written using the Python programming language... I'm still a newbie at that, 2 whole months of coding in Python under my belt...
But SNOOPY is spreading, he started his life at Python.Org (warning these sites show the actual code behind creating Snoopy)
http://python-forum.org/py/viewtopic.php?t=5063
And has now gone on to invade an ASCII web site.
http://www.ascii-world.com/print-snoopy-to-screen
Maybe he's not the most complicated program out there, heck he's probably one of the simplest graphics around... but he's MINE!!!! (and I'm still proud of him, regardless of what folk like Ice-man feel)