I would also expect that Zogby doesn't use all the "votes" he receives, but adjusts them based on making sure he has certain demographics represented that conform to his estimate of how people will vote in that state. Dales has a better discussion of the problems with Zogby Interactive, and has pointed out that recent traditional polls disagree with the ZI results.
I don't use the Zogby Interactive numbers in my analysis.
Last night's SD election shows just how bad Zogby screws the pooch in the state totals...
Zogby is making the same mistake Rasmussen made in 2000. Rasmussen used the automatic polling method then and showed Bush winning comfortably. he completely missed the movement that last weekend, when all the traditional polls had it as a nailbiter at the end. Zogby is now doing the same type of polling this time around, and is getting the same skewed results but since Zogby is biased Dem instead of R his results are skewed to sKerry.