The NY Times online has some of the most interesting, arresting, and compelling infographics. They somehow make even the driest data dynamic and lively. Online is definitely well-positioned to display such data that print has much more trouble making interesting.
In honor of the 2008 Presidential elections, here are a few links to their exit poll data and their county data for the Presidential vote.
The Shifts in the Map — a wonderful slideshow (an example of how slideshows should be used) showing how voters changed, by county, by race, gender, age, etc. PowerPoint users, please take note.
Exit Polls — simple bars, but all together paint a very compelling picture.
County by County Vote Results — Click the County Bubbles link. A bubbles & map graphic that shows relative population in relation to voter breakdown. Lots of information packed into a seemingly simple infographic.