John Hewitt has an amazing website at www.poewar.com. Every aspect of writing you can think of and, best of all for NaNoWriMos, a step-by-step approach for getting your jewel of a novel revised and ready for submission. Start here if you want to go directly to John’s novel-revising guide: http://www.poewar.com/firstdraft/
Of course, Chris Baty and team wouldn’t leave us aspiring novelists hanging after a grueling month of (almost) nonstop writing. Check out their tips at I Wrote a Novel, Now What?