<p>Feed(Aggre)gator takes a list of RSS feeds and creates a single list of RSS items from those feeds to be displayed as a widget. You can select how many items you want to display and whether you want to show the entries chronologically or you want to show the latest entries from each feed listed.</p>
<p>You can also opt to display the date associated with the RSS item as well as the author of the item.</p>
<h3>Donate</h3>
<p>If you like the plugin, consider supporting the author through http://www.brownlowdown.net/webdev/feedaggregator/#donate.</p>


feedgator

Feed(Aggre)gator merges a group of RSS feeds into a single widgetized list.

cavemonkey50

<p>WordPress 2.1 introduces a nasty “feature” to feeds. Instead of abiding by your feed preferences, WordPress will truncate your feed’s content anywhere you insert a <!–more–> tag. Full Text Feed undos this functionality, allowing your feeds to contain the full text regardless of <!–more–> usage.</p>


Full Text Feed

Prevents WordPress 2.1+ from adding a more link to your website's feed.

feedgator vs Full Text Feed