As of now, the OnceFound network has grown by two additional sites. Both WhereCould.com and HowCanYouGet.com are now live.
To accomplish this, I didn't haven't to deploy anything additionally, and the domains are actually redirected to a single Windows Azure application instance.
The architecture of the codebase, allows the host names to drive the content of the site (title, branding, etc, thought not much is customized for now).
I also cleaned up some of the code and layout, added images for upvotes/downvotes, added google adsense (which appears blank until google approves) and made a few other minor tweaks.
Feel free to check them out.