These markets are notoriously conservative (apparently liberals only gamble with foreign policy, not markets!), but, still, worth following:
It started this morning has been steadily rising.
Explanation, from Intrade:
Last Price: 12.7
What does this mean?
12.7 means the market predicts there is a 12.7% chance that [Sarah Palin withdraws her nomination] happens.
If you think is [MORE likely than 12.7% that she will withdraw] you should BUY
If you think it is [LESS like than 12.7% that she will withdraw] you should SELL
All markets trade between 0 ($0.0) and 100 ($10).
12.7 = $1.27