SS feed is an XML-based file. To give anyone access to the information contained in the feed, the feed must be placed on a Web-server. An RSS feed can contains various information beginning with your corporate news and ending with the daily menu of your neighbor's dog.
How to Create RSS.
Nowadays, you don't have to write RSS-code manually as there are many programs that can create RSS feeds in the WYSIWYG mode. To make use of such software, you don't have to know XML or the RSS specification.
Feed Editor: create, edit, publish rss
Feed Mix: mix rss feeds, make rss
Promotion.
Before starting to promote your feed, check that the XML file is free of errors. You can use this free RSS-validator:
http://www.feedvalidator.org
After you have made sure that your RSS feed is correct, link to it from one of the pages of your website. Then, tell all specialized search engines and directories about your RSS feed. Of course, you can do it manually, but it is better to use special services and software:
http://www.feedsubmitter.com
http://www.submitrssfeed.com
Conclusion.
Finally, if you want your RSS feed to become truly popular, then, besides a stream of new users, it needs a constant audience of readers that will take part in the development of the feed and leave comments.
