The Ghost of RubangB on 18 September 2008
http://graphics8.nytimes.com/images/2008/09/18/us/0918-nat-webPOLLB.jpg
This graph shows how voter support (by demographic) changed after each convention.
And now the New York Times has a nice interactive graphic thingie that lets you czech out polls over time or for swing states.
http://elections.nytimes.com/2008/president/whos-ahead/polling/index.html#US_22
And this is from CBS (link):
"Obama leads McCain 54 percent to 38 percent among all women. He holds a two point edge among white women, a 21 percentage point swing in Obama's direction from one week ago."
