Does anyone know of a web app or some such tool that simply checks an RSS feed and archives each news item and has the ability to export rss or generic xml (or even better, automatically saves it). I'm having a surprisingly hard time finding anything like this. A programmatic solution should not be difficult, but I'd like to identify a user-friendly tool for a client.
You can use a search engine like SearchBlox to index and archive the rss feeds. After you install SearchBlox, create a RSS collection and add the urls, then set them up on a hourly schedule to index them. Not only will the rss items get archived but the news link will also get indexed.