Readers and members of Planet Atheism may be (I hope :) ) aware of the Planet Atheism FAQ. I believe it is quite comprehensive, and it should answer any questions a potential member may have.
But what about current members? Sometimes, they have questions, too. I could add them (and their answers) to the current FAQ, but I think that those who're interested in one of the kinds of answers aren't necessarily interested in the other, and vice-versa. If you're not in, you won't be having any problems, and if you're in, you're not considering whether joining is a good idea. :)
Therefore, later today (I hope) I will be starting a new Planet Atheism members FAQ. It will include answers for questions such as "my last post isn't showing up on PA".
If you're a member, and have any other questions, ask away (for instance, as a comment on this post), and I'll answer them, either as a reply, or in the FAQ. :)