Publishing announcements/news in portal

Hi all,

I need to create a feature in EP where in any authorized user will be able to upload a document(say for example company's annoucement) and the information contained in the document will be shown in the portal.

(Description : Portal is company's intranet and company will have daily announcements which they need to update it in the portal.An authorised user say a HR folk will just upload the document by browsing the desktop and the details of the document should be published in the portal)

This i need to create using Webdynpro. Can someone help me out in this or provide pointers to this .