Couple things:

1. I logged in with Facebook.It now shows my location as Toronto. I am in California.

2. Couple display issues. In Firefox (I haven't tested other browsers) a long link (i.e. to an article on Yahoo News) runs over the side and looks really bad.

3. Others have said it but why would I need this over something like Digg? I don't like Digg (mainly because I remember when it first launched and I don't like what it has become) so I don't see why I would use this. This is more like sharing links on Facebook so why wouldn't I do that?