The Client and RSS Feeds

Client or Online Blog Software
Many client or online weblogging or, as they are commonly known, blog services offer the ability to generate and syndicate an RSS feed directly from your blog. Web sites offering this service include http://www.livejournal.com and http://www.blogspot.com. Moveable Type is a common service one can install oneself or use from a subscription service.

Client or Subscription Web Site Scraping Services
There are programs available for download that will scrape your existing Web page, determining what items should be put in the RSS feed. This method is useful if you already have a Web site, but would require that you double-check the RSS feed that is generated to be sure it is accurate.

There are also online services that you can subscribe to that will scrape your Web site for you, generate an RSS feed from the information it gathers, and then syndicate this feed.

Write the Feed from Scratch
Another option is to write the RSS feed in XML yourself. This is the most direct method, and has the advantage of being sure to have correct and accurate information. You also have the ability to generate a Web page from the RSS feed with several possible tools.