CigarettesPedia is a site I came across the other day. It's a very cool website about the history of cigarettes and has a huge list of historical and current cigarette boxes, with pictures for a lot of them. You can edit it like Wikipedia and add your own information about cigarette boxes, cartons or any sort of information if it's relevant to the page.
I knew there were a lot different types of cigs out there, but not as many as they've got there. They must have tens of thousands of different cigarette boxes on display. From all around the world too. It's interesting to see the ones from all of these smaller countries, as well as the older cigarette designs.