Maxperson
Morkus from Orkus
Which points out one huge difference between us - a year-and-a-half for us counts as just nicely getting started.Since 1984 I've run three campaigns, and the current in-progress one is (for now) the shortest at a bit under 9 years.
But note that I'm perhaps also using the word "campaign" to mean a bit more than some: in my case the "campaign" includes all the adventures played in that particular world/setting provided that said adventures/parties can somehow interact with each other. Charting the characters/parties moves in my current campaign results in something resembling a plate of spaghetti as parties merge, split, stop, start and individual characters move from one to another. In play, what it often means is one party gets put on hold while we play out the other, then we switch back. Same campaign, though.
Lanefan
Heh. I've been on one very long term campaign like that. It spanned 2e and 3e and still isn't done. It may pick up again some day. Another friend of mine charts his groups like that. He has a map of the realms with push pins in it representing various groups.