RSS feed is one the of the easiest way to get the latest information. Traditionally one would use an RSS reader to read RSS feed.
Now, you can easily show RSS feed from any source on a WordPress Blog using FirstRSS and SideRSS WP Plugins.
This plugin requires: WordPress 2 or greater and PHP 4 or greater.
You can download and review this plugin here…
UPDATE - Here is another very Good WordPress Plugin to Show RSS Feed as HTML in your WordPress Blog. In case above one does not work, please give a shot to this one.
QuickRSS, a WordPress Plugin to show RSS Feed. Click here for demo & download.