I've noticed there's Orthodox-Catholic and Oriental Orthodox forums, but I think we need to put more effort on dialogue with other faiths.
Every now and then I visit a Muslim forum that has a "Islam/Christianity/Judaism" dialogue forum, which is quite popular.
It attracts all kinds of Muslims, all kinds of Christians and Jews.
I think we should push for an interfaith dialogue forum here, which may start attracting non-Christians to this site. It may help to get Orthodoxy out there.