You can create and customize your website's RSS or Atom feeds by generating digests with these online controls. Enter your URL(s) into Feed Scraper, work the controls, and...voila! Free and fee versions.
If you don't have a server that is able to generate RSS feeds, then you can manually create them with RSS Writer. All you need to do is upload the XML file once you have entered your content. RSS Writer is Freeware !