Drupal is the perfect tool when it comes to exposing content to your users. Not only are all of the menus built by admin, you can create dynamically generated lists of content such as "most recently created pages" and "top 5 visited pages", but also have RSS feeds generated automatically.
RSS feeds stand for "Really Simple Syndication". Basically, it provides an unformatted listing of certain content on your site. What its used for is informing visitors of your site when you update or add new content. If a visitor saves your feed for example in "iGoogle", every time they visit the google home page, they can see a listing of your content. Lets say you created a feed of "latest offers". As soon as you create a new offer, it is in the public domain instantly and the next time that visitor goes to the google home page, they will see your latest offer with a link back to your site!