Web pages are an extremely useful format for many different purposes. If possible, I think it's best to stick to the most widely used standards. This format may be UTF-8 encoded , Strict XHTML 1.1 with CSS1 . The file may contain an American English (en-US) web page, valid in the strict XHTML 1.1 language, encoded in UTF-8. It may also contain a fun visual style for the page, in the CSS1 language. Entire jobs may be distributed in single ZIP files . The zip may contain web pages and atom feeds . An atom feed can include a good record of the whole project. Share your comments!