According to mst3kinfo.com it looks like Mystery Science Theater 3000 will use their website to put out new episodes of the show:
"Beginning November 5th, BBI will be launching its very own website at MST3K.com. The site will feature brand-new animated adventures of Crow, Tom Servo and Gypsy. We're told the goal is to have one new adventure each week (though "some settling may occur with shipping," they added). The Web site will also feature work from the original series (which BBI is now calling "the legacy series"), behind-the-scenes footage and other material culled from the BBI vault."