Tiny Plots are strings of planed out role playing, with a planned begining and end.
This would be something like a dibbun party escapeing from the clutches of the abbey's brothers and sisters and haveing an adventure in the woods. A Major Plot is a bunch of Tiny Plots put together. The last Major Plot we had is when Vengro's horde laid seige to the abbey for over a month. It's like a story, logged by one of the participants.