After seeing the price for Palin, I had a question many other Americans were asking: Who is Sarah Palin? So I went to that other great aggregator Wikipedia and read up on her. The scariest part: For the first time, someone on a major party ticket is younger than me.
The wisdom of crowds boiled down to a number on a trading site and a constantly updated page with much more than I need to know. The rest of the Internet is just commentary.
Some graphs of Intrade's market on the Palin market lifetime and in the last day.
Two things to note: The markets didn't predict Palin until close to the end. Also big volatility in the closing hours. Market aggregate public information—they don't predict what isn't out there. In the last hours, even little rumors, accurate or inaccurate, can drive prices as some people try to make a fast buck.