Looking for more help with DITA? Try these sites:
DITA blog posts from Scriptorium: Best practices, advice, case studies, and more.
XML business case calculator: Do you have a solid business case for implementing DITA/XML?
dita-users: An active mailing list frequented by many DITA experts.
DITA Style Guide: Provides information about best practices for DITA usage.
DITA Open Toolkit: A framework for generating HTML, PDF, and other output formats from DITA content.
DITA4Publishers: A DITA framework for publishers. Highlights are publishing-specific DITA metadata, and output to EPUB, InDesign, and HTML5.
DITA training at github: The source files for the courses found on learningDITA.com.
Sample DITA content: a documentation project based on a 1960s Mini Owner’s Manual, contributed by Felicity Brand.
Formation DITA et spécialisation: DITA training in French, contributed by Pierre Attar.