Pathfinder Society Home Page – The official Paizo website for Pathfinder Society. It contains the official Pathfinder Society forums.
PathfinderSociety.net – A community website designed to highlight play opportunities throughout the world and hold various community-created resources for making pay easier.
Additional Resources – A list of everything that is legal to use for your character
GM Shared Prep Drive – A community-created forum containing tons of prep work for PFS scenarios and modules. When prepping a scenario, look here to see if someone has already done the work before you.
Pathfinder Society FAQ – Various rulings by campaign staff such as “Can Crossblooded and Wildblooded be combined?” (No) or “Do effects of weapon blanches carry over from scenario to scenario?” (Yes)
New Character Reference Sheet – Created by our friendly VL to the east, Brian Lefevbre and edited by us, this is a quick cheat sheet with lots of information about starting a character and what happens after a scenario. Works well as a Chronicle Sheet 0.
Pregenerated Characters – The PFS legal pregens for when there are only 3 players or someone doesn’t have a character within range
Secondary Success Conditions – For Seasons 0-4, the list of conditions for players to earn the second prestige in a scenario. (Here is a version with a separate spoiler for each scenario in case you are afraid of spoiling other scenarios for yourself.)