It is called moniedinterests.com.
NewMogul.com was a community about economics, investing,
entrepreneurship and other similar things started by the prolific Hacker News user nickb.
It was a community that was very much like the early days of Hacker News (then Startup News). It had clever people of every sort. (Hopefully, you all return.)
Both New Mogul and nickb disappeared; he moved on to other things. So, I made moniedinterests.com
Please stop by.
edit: It isn't a HN clone, because I don't know Arc well and want to be able to add new features. I know: that's lame.