I was wondering if some experience web designers could give me a few suggestions on how best to display this.

I am working on a site with blog type content items. Beneath each item is displayed a list of "related news" items.

The problem is that some of these lists are quite long (sometimes 300 items in the list).

How should I handle this?
Maybe use an iframe that can scroll, thus displaying all the items, but not so much screen space?

Any suggestions?