I got to thinking you might share factions with other DMs much the way you share dungeons. I envisioned something like an illustrated family tree with brief, abstracted notes on the members. So I whipped up a draft:
traits and poker personality information. The meter in the corner is meant to record the party's reputation with this faction as per rorschachhamster's suggestion. Put them all together and you might use it like this (partially filled out):
I think I mentioned wanting an abstracted village long ago, add to that a convent/monastery, mages guild, thieves guild, etc. I think I'm going to have to make them myself.