SiteVision has a built in news portlet. The portlet can be used to display press items on the start page automatically with links to the complete article. Depending on the settings and your rights you might have a link"Add article" where the user can add articles. By clicking the link "Add article" you switch to the editing mode with a page template created for news where the user can add the article.
You can also automatically receive news from other web sites like BBC News. In order for this to work, the web site where you want to get the news from has to use RSS news feeds. This means that other web based news systems can fetch news from the web site. RSS is an XML standard that most of the news feeds on the internet use to expose information with.
Permission requirement! In order to be able to click the link "Add article" you need to have the permission to write on the archive.