Reply To: News web site
I think your looking for an unread posts plugin. There are quite a few you can use for bbPress.
bbPress go to first unread post
I personally like bbPress Pencil Unread, because with a few lines of custom css I can either have the new label or a custom image before the forum/topic title like in the other plugins. And because it has a template tag to include a mark all as read button somewhere. Other users like mark as read as it is close to vBull functionality and the go to first unread post plugin as its close to phpbb functionality. You probably would just need to use Unread Posts v2.
