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@1543965856 @Eanna Cunnane @Matt Brown16 comments
@Roy Gilad, I'll leave @Erica Kuhl answer this one, as she's the person who has taken the community from vision to reality - I just get to take advantage of the fantastic ecosystem she's built. However, I'd highly recommend you check out this great e-book on building communities, "5 Steps To Communities That Thrive" https://www.salesforce.com/form/pdf/chatter-communities-ebook.jsp There's also a Dreamforce session based on it:
http://www.youtube.com/watch?v=Yn9FrSiu_Kw