The comic book blog site Comic Mix announced at the Baltimore ComicCon that it was going to publish original webcomics beginning in October. There's a post on it at the blog Occasional Superheroine. Comic Mix doesn't sound like it's doing anything ground-breaking but it does sound like an interesting roster of creators who will post material there:

The list of talent Comic Mix has on-board is impressive, including Mike Baron, Rick Burchett, Chris Burnham, Michael Davis, Ian Gibson, Dick Giordano, Mike Gold, Stuart Gordon, Mike Grell, Bo Hampton, Glenn Hauman, Marc Hempel, Lovern Kindierski, Linda Lessman, Jay Lynch, Frank McLaughlin, William Messner-Loebs, John Ostrander, Andrew Pepoy, Bob Pinaha, Michael H. Price, Bill Reinhold, Nick Runge, John K. Snyder III, Joe Staton, Martha Thomases, Robert Tinnell, Timothy Truman, Trevor Von Eeden, Mark Evan Walker, Matt Webb, Mark Wheatley, Skip Williamson, Marv Wolfman, and John Workman.