Need to get the word out about our community, any advice?
 

We are launching our site (just finished building most of the back end). Half of the website runs on vBulletin. We are wondering what the best places would be to try to get people to check out our site, and potentially contribute?

The site is about helping others and making the world a better place. There will be discussion about various non-profit organizations, charities, NGOs, and for-profit organizations as well. Are there any sites where this kind of thing would be welcomed, and where we could post about our community website?