I’m looking for good ways to present factions. They’re supposed to be active entities in game, not just flavour that someone has read up on or a backdrop for the PCs. So the GM or player (in a GMless game) that controls them needs info: Where are they located? What do they do and how? Clues pertaining to their actions/organisation? Who are the people in a faction? Who are they connected to and how - both on- and offline? What are their goals and plans? How would they react to different situations? …
What games or modules manage to present this stuff in a concise and usable form? What games or modules have the best factions and why?