A group of weekly cartoon shows on the internet backed by an internet company? It's like the dotcom boom all over again! Party like it's 1999 and share your love for KeenTOONS.com here.
I don't know any more than you do, but my guess is Matt Wilson purchased the webspace for a year or something and it just ran out and he doesn't feel like renewing it.
http://www.newgrounds.com/portal/view/265596 I think it's that "ignorance is bliss" part, until the bliss leaves and then you just feel stupid. --Josh Homme (Queens of the Stone Age)
If you allow me to go off topic for a minute; if you search, "high score," on wikipedia, in the references section they give Matt Dawson credit for creating a flash cartoon by the name of high score.
IDK how old this is, I just wanted to point it out.