Personally, the Writers' Corner
is the place to be.
I initially found MobileRead because I wanted to discuss a specific book. Since then I've hung around for some time, and found a lot more.. Especially a lust for writing my own books, and for that, Writers' Corner is very helpful to me!
if anything could be improved in that forum, I guess it would be a wiki page with an index of all the common questions asked by new writers, or just an overview of helpful threads for aspiring writers as myself - The wiki page could be linked to as a sticky at the top of the Writers' Corner sub-forum.
Edit: Oh, and even though I've already written it in another thread - Happy birthday!