CainIV - 6:15 am on May 13, 2008 (gmt 0)

Create the community around a unique perspective on the subject.

Offer new ways to address the topic and involve user input.

Relate the subject to other subjects in a different way than has been done.

I think if you can create a community based around those aspects, then your community will offer something that none other can offer, and will thus be a success in many ways.

Every subject can be addressed in a unique way.