RSS was originally created in 1999 by Netscape as a channel description framework for their My Netscape Network. MNN was a portal system that allowed end users to selectively view new content from their choice of content providers. RSS was created as a means of gathering that content. Since its creation, RSS has been updated and expanded to handle a much wider range of content with a far broader range of uses.
Iíve used the comment sub-element to provide the URL for the article discussion blog. For the guid I just used the URL of the article since itís always unique. Not setting item guids can prevent news readers from updating your listing properly. The pubDate has been set to show when the article went live on DevArticles.com.