Don't get too discouraged; Newt still has a very real chance at winning the nomination, or at the very least taking it to the floor of the Convention.
Super Tuesday is still six weeks away (March 6), so I won't start getting worried until after that date. Between now and then we have votes in Nevada, Maine, Colorado, Minnesota, Missouri, Arizona, Michigan, and Washington. Then on Super Tuesday, we have votes in Alaska, Georgia, Idaho, Massachusetts, North Dakota, Ohio, Oklahoma, Tennessee, Vermont, and Virginia, with Wyoming holding their caucus from March 6-11.
"YEAAAAGHHH!"
-- Howard Dean, 2000.
(Same results for Gingrich, I expect.)