I have seen several sites which somehow automatically gather aggregated updated RSS data, list the items by title, which in turn, link to a page WITHIN THEIR OWN SITE which displays the complete content pertaining to the item. From what I understand, RSS feeds have a title and a URL (amongst other info), but do not contain the full content. How are these sites gathering, and displaying the full content? Thanks in advance.
They do it by means of a RSS script parser usually written in PHP or convering an RSS feed into Javascript. You can find those scripts right here http://www.hotscripts.com/PHP/Scripts_and_Programs/XML_and_PHP/index.html As you can also copy and past a RSS feed into the following tools to get the Javascript code to add to your website for such task, http://www.rss-to-javascript.com/
I don't think I was clear enough. Let me clarify. I understand that you can parse the XML file for Title, and PART of the content. The XML file only contains the first sentence or so from the full content. However, I have found sites which display the COMPLETE content of the item, and they also archive the content and even integrate a search engine for the content. These parsers only pull the data from the XML. How do I get the full data?