FAQs (or Frequently Asked Questions) are effectively GW "house rules" on the grey areas of the army book. They offer useful guidance and help you understand the intented interpretation of the rules.Note: FAQs are not the same as errata's. Warhammer Fantasy Battle errata's are the corrections that Games Workshop will be making to the next print of the Army List.
The new Lizardmen faq and all Fantasy Battle FAQs:-
Games Workshop's Lizardmen Rules pdf (FAQ)
All Warhammer Fantasy Games Workshop FAQs
Miniature From Warhammer Battle Reporter forum - Kiour_gr's collection