DITA XML.org is a community-driven site and encourages content contributions from readers. A one-time registration is necessary before adding content.

• Wiki pages may be edited and new pages added using a wiki interface.
  
• Use custom forms to post news, events, products, services, testimonials, and links to resources. Other people will be able to append comments to these pages but will not be able to directly edit what you post.

You can edit and create pages easily, without learning any special markup.  The site supports the 'wiki link' concept.  While using the edit window, simply type a word surrounded by double brackets, and upon saving the edits you are making, a new link will be created to the 'new' page described by the wiki link. 

Not sure where to add something? See How to use this site.

Please review the XML.org Editorial Guidelines and the Styleguide before contributing content to any page.