I emailed him several times at nickb.yc@gmail.com about getting newmogul.com back up before starting moniedinterests.com, but he never got back to me.

He is likely doing well. He disappeared for a month (or maybe longer) before and showed up to leave a comment at NewMogul (http://news.ycombinator.com/item?id=784284).

I suspect he simply moved on. I also suspect he'll be back.