For the past few days, this image has been circulating on many design blogs. In fact, when I first saw it I thought about posting it, but something seemed wrong. Well, Armin over at Brand New, has revised the chart and given us a very thorough look back at the changes in both logos—definitely worth checking out.
The revised chart does still come to a similar conclusion as the original chart—that Coke has stayed remarkably consistent as Pepsi has fidgeted to match the times—but it is pretty interesting to see the evolution.
I am also kind of fond of this fun (albeit incongruous) one from 1890-1891, found in a pdf from Coke (via a commenter at Brand New).

Cool post sam! Way better than what happened to tropicana.