All that is here so far:
Appendix B from 'The History of Galadriel and Celeborn'

FAQ Entry: Half-Elven Mortality
FAQ Entry: The "Other Wizards"
FAQ Entry: Ring-bearers' Journey West
FAQ Entry: Sauron's Physical Form
FAQ Entry: Círdan's Beard/Elven Facial Hair
FAQ Entry: Beorn

I'm working on the rest.