You can set the minimum rank for each piece of news ... So you could set the guilded people to a Guild Member Rank, and the Raiders to a Raid Member rank ...
You then could post news that the guild could see, but the raid could not.
You woudn't be able to post news that the raid could see and the guild could not tho.
You can do something similar for the forums with ranks as well, but I don't think there are plans to implement forum sections like you are used to. These forum use thread tags. You can set the ranks for these thread tags just like I described for the news.
The thing is, the ranks are a sequnce, 1 2 3 4 5 6.
They are setup so that when you set it to 4, anyone in rank 1 2 3 or 4 can see it.
There is no way to say rank 3, 5 and 6 can see this page/message/forum/etc ...
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