Joining an IRC channel can solve doubts more quickly than posting at linux forms. IRC named ##linux would be filled with more than 850 users every time. And I never waited more than 10 sec for a question. At least 3 answer pops up in that time. I have never seen such an active channel elsewhere. If you have any doubts (after googling), I strongly suggest you put that in ##linux. For joining an IRC channel, you should have
* A client say Pidgin
* Add an account specifying IRC as protocol
* On receiving a prompt or chat window type /join ##linux
* Use a nick name, /nick <name> is enough. Registering that nick if you are a regular visitor.
* For more details you can google IRC/freenode.