Now that the conventions are finally (!!!) upon us, it's time to start paying attention to the end game, the big Nov. 4. With the presidency pegged on who grabs the majority of the electoral votes (the magic 270), the website FiveThirtyEight is one-stop shopping for all the data you'll need to suss out the horse race.
Holy cow! SurveyUSA just posted fully red-and-blue election preview maps based on 30,000 interviews in all 50 states! Almost fully clickable (they're working on it) so you can see the data behind the color!