Faqs, errata, etc:
General FAQs can be found here: APG, Bestiary, Core Rulebook, Ultimate Combat, Ultimate Magic.
PFS Faqs and Rules can be assumed to be in effect unless contradicted by one of the other rules on this page. Specifically, if something is disallowed for PFS on this page, I also disallow it unless I specifically say I do not disallow it. I'll eventually get around to fixing pcgen to simply not include those items, but for now, you'll have to check yourself.
See also this list of message board rulings