Welcome to Classic-Castle.
With regards to your question, I do not believe that there is anywhere designated for a Skype address, so I cannot direct you anywhere. If anyone knows otherwise, I'm sure they'll reply and inform us otherwise.
Also, please read the forum descriptions before posting in them. I realise you're new, so I'm not concerned, but you should know that "Castle MOCs", as a forum, is for your LEGO Castle creations, not questions about how the forum is run. That belongs here, in Administrative.
~Michael A. Joosten - Moderator~