RSS 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.
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.
http://www.extralabs.net/articles/create-rss.htm
About ExtraLabs Software
ExtraLabs Software specializes in the development of RSS and image-processing software. The company was founded in 2002 by a team of Russian software engineers. ExtraLabs Software is the author of such products as “Feed Mix”, an RSS reader with the editing ability; “Feed Editor”, a fully-fledged RSS and podcast editor; “RSS Wizard”, an HTML to RSS converter, “RSS Publisher”, a free tool for publishing RSS Feeds, and “Image Assistant”, a tool for batch-mode image processing.