http://dirkgorissen.com/2012/11/12/the-rhok-faq/
Dirk Gorissen gives a good run down of commonly asked questions about RHOK:
With the next Random Hacks of Kindness event looming and me organizing a satellite event here in Southampton, UK I found I have been writing a lot of similar emails and violating the DRY principle at every turn.
The purpose of this post is to put a stop to that. Eventually this should merge into an official FAQ on the rhok.org site (as far as I know there isn’t one currently).