I'm using the one from http://hn.premii.com/ http://hn.premii.com/ and when logging in it takes me to the HN website login page. As I said it kind of looks like

I'm using the one from http://hn.premii.com/ http://hn.premii.com/ and when logging in it takes me to the HN website login page. As I said it kind of looks like an OAuth flow but probably isn't :)