The more I think about it the more I think there’s something we do not know about what is going on with Sarah Palin.
The resignation from the Governor’s desk makes no sense unless somethings else is going on. I think it comes down to a few scenarios.
1) Scandal. There’s some big terrible scandal coming down the way and the only way Sarah could avoid it was by quitting. The problem is that quitting doesn’t help. She loses the pulpit of the office and the services if the government lawyers if it is legal trouble. For the life of me I can’t figure out a scandal that would be improved by quitting.
2) She really is tired of the personal attacks. But if that is the case she’s not going to get away from them by campaigning for others and remaining in politics. The nature of modern politics is that lots of nasty personal attacks are hurled and you better be able to stand up to them. Again, without the bullhorn of the job she’s disarming herself in that fight.
3) She’s gotten a better offer. Some sort of TV show or other major media spotlight that pays better and flatters her ego better. This is credible if that’s what she really wants. To be the conservative Oprah would be a gig she is well suited for — but then again I don;t a high opinion of Oprah as a thinker either. If this is the case we’ll hear about it soon, otherwise why quite now?
4) The job’s not fun anymore. With Oil prices crashing and the economy in a shambles it’s no longer fun being in charge of Alaska. Suddenly there are lots of problems and the money’s much tighter. Perhaps she was never suited for a job that required real decision making and when it started to happen, she bailed.
5) She wants to head up a new party. There’s some talk from the Tea Party folks that they;d love Sarah as the head of their movement. Frankly I think it would kill all serious consideration of their cause. She’d be posion.
or finally–
Maybe her ego wasn’t getting stroked enough. The sort of ties into the criticism angle except instead of running away from attack she’s running toward adoration. Places where people pay $150 a dinner to hear her speak and won;t ask any questions that can’t be responded to with a pat answer.

Honestly, I would not rule out that last one.