Here's some documentation about WordPress for those who want a deeper
introduction:
Introduction and features
http://codex.wordpress.org/Introduction_to_Blogging
http://codex.wordpress.org/Working_with_WordPress#WordPress_Features
First steps (offers an overview of all aspects of WP, including some
of the management and configuration)
http://codex.wordpress.org/First_Steps_With_WordPress
The difference between a "page" and a "post"
http://codex.wordpress.org/Pages
You don't have to know HTML to blog, but those who used HTML
previously might want to brush up:
http://codex.wordpress.org/HTML_to_XHTML
WordPress terms:
http://codex.wordpress.org/WordPress_Semantics
More:
http://codex.wordpress.org/WordPress_Lessons
http://codex.wordpress.org/Getting_Started_with_WordPress
http://codex.wordpress.org/
http://wordpress.org/support/
WordPress Glossary
http://codex.wordpress.org/Glossary