I notice that you're currently using the Creative Commons by-sa
(attribution share-alike) license. That's a good license, nearly
identical in spirit to the GNU FDL but not, in my opinion, strictly
compatible.
Since you're only a few days in, you could still switch to GNU FDL
easily enough -- this might be best for you, if you envision a lot of
content sharing between your site and wikipedia (which seems natural).
I'm enthusiastic about your project, and I think the idea is
excellent.
I am planning to campaign with RMS to change the GNU FDL to be
cut-and-paste compatible somehow with CC ATT-SA, but it's hard to say
if that would ever happen.
--Jimbo