From here: http://politicalticker.blogs.cnn.com/2010/12/08/palins-website-hit-by-cyber-attack/?iref=obnetwork
Governor? Of what? Didn’t she quit like 2 years ago? 
She didn’t call herself anything. Her spokesman did the talking. That aside, he was following protocol. In general, you call elected officials by the highest title they have attained (assuming they don’t hold another position at the present time). So you can find countless examples current references to Bill Clinton as “President Clinton,” for example.
I saw a few clips of that Jesse Ventura conspiracy show (which bizarrely has June Sarpong or at least to those in the UK) and they call him ‘the Goverrnor’ and ‘Governor Ventura’ a few times on it. Though to be fair he’s not as big a fruitloop as Palin.
“Governor Palin” sounds a lot more dignified than “Palin the Quitter”. Yes, technically she’s entitled to be called Governor Palin, because she was elected to that office. And of course if she’s going to run for another office, she (and her handlers) are going to want to claim every bit of credibility that she/they can.
However you think of her politically (and I dislike her immensely), she is entitled to be called “Governor” by standard usage.
It’s not like there’s a law about it, but I don’t think you should expect to retain the title if you quit. That’s a special circumstance.
Countless example which the expert says are incorrect. According to Miss Mannershe should be addressed as Governor Clinton.
Didn’t she put in her rider for speaker engagements that they must call her “Governor Palin”?
Yes.
Gotta stay off those porn sites, Todd…
Back in their debate when she first greeted Biden and said, “Do you mind if I call you Joe?” I wish Biden had said, “This is a formal and serious debate and I think we should treat it as such, and so I’ll call you ‘Governor’ and you call me 'Senator”, though you may certainly call me ‘Joe’ in any personal conversation we have in the future when this debate is over."
Callers to Ed Koch’s radio show still often call him Mr. Mayor. As others have mentioned, you kind of retain the honorific for life, unless (I should hope) your name is Kwame or something.
Dad and his friends still call one another “Marine” (there’s another thread that comes to mind about this one).
The point is when she quit, she should have forfeited her right to being called Gov. She should be called 'the Quittinator".
Jesse Ventura served out his term. He deserves the respect.
I oppose any policy which might have caused Palin to stay in office.
I’d even support a constitutional amendment allowing Palin to call herself President Palin as long as she agreed not to actually run for the office.
“Should have forfeited”? The point is that you can call her what you want and deal with the consequences, such as having many people who don’t respect you and someone coming up with a title they think you should have.
Ventura forfeited his right to my respect by conspiracy theory mongering. I’ll address him as custom prescribes, however.
But if I ever get to ask Obama a question and he answers using my first name, I’ll say “Thanks, Barack.” I figure if he opens the door of familiarity, I’ll go through it.
Whenever I’m in a shopping mall, I insist upon the title “His royal and mighty highness and pretender to the Throne of France.”
I find using that title makes it easier to get the stores to accept my personal checks.
Make it, “Thanks Barry.” It sounds more insolent that way. 
If you’re black, I’d go with “my nigga”.
Agreed. Referring to “President Nixon” always seemed wrong, too. But that was the correct protocol, even though he resigned in disgrace.
Not according to Judith Martin, see link upthread.