By all means blog about your progress, but if you’re serious about writing (and let’s face it you should be if you’re going to get through the next month) don’t publish your novel on-line.
Blogging is self-publishing and unless you are really lucky, no publisher is going to touch a work by an unknown that has been self-published.
There are always exceptions, but unless you want to take a huge gamble, my advice is to resist.
Last year, I came a across a few people who had interest in their novels, but the publisher was not interested if the work had been previously published, even on a website.
They had to take the work down and hope the publisher didn’t find out. That’s not a good way to start to a professional working relationship.
Nanowrimo survival index