Heya, all. :)
My eyes hurt from staring, cutting, pasting, but I took the posts on the community site and put them together into a single spreadsheet. It lists the locations and all as well as the time of the first plot to end in that community. I figure this could be used to sort the list according to time. Also, you can put any notes right in the row.
It's simply and no-frills, but I hope it's useful to someone. :)
http://home.comcast.net/~sapph/dragonlairs.xls