WordPress and WordPress MU require downloading the software and installing it on your own web hosting. WordPress.com is the hosted version of WordPress and does not require downloading of software. Everything is on their site. Just sign up and you're assigned yourusername.wordpress.com

Support Articles for WordPress.com Users

The following is a list of documentation on the WordPress Codex that may help answer your questions about posting, creating categories and Pages, and managing your WordPress blog on WordPress MU.

For answers to specific questions about using WordPress.com, visit the WordPress.com FAQ and the WordPress.com Support Forums.

• First Steps With WordPress
• Introduction to Blogging
• First Steps With WordPress
• WordPress Semantics - Learning the Jargon and Terminology of WordPress
• Writing Posts in WordPress
• HTML to XHTML - Learning the Difference
• Understanding Pseudo-Static Pages in WordPress
• Understanding WordPress Feeds
• How to Write Code in WordPress Posts
• Blog by Email
• WordPress Administration Panels (core content is the same - the look is a little different)
• Podcasting With WordPress
• Linking to WordPress Posts, Pages, and Categories
• Using Smilies in WordPress
• Understanding WordPress Admin Discussion Options for Comments
• Using WordPress Links Manager - The Blogroll
• WordPress Current Events Information
• Finding More WordPress Help and Tips

Other Articles on Using WordPress.com

• What Do I Do With My New WordPress.com Blog
• WordPress.com and Blogging Tips, Tricks, Themes, and Plugins
• New to WordPress.com - Tips to Get Started Fast
• Everyman's Guide to WordPress.Com "installation" - Step-by-step guide to setting up a WordPress.com blog
• Step-by-step guide to redirect a WordPress.com blog
• Attention WordPress Theme Designers and Authors - Designing WordPress Themes for WordPress MU
• Choosing a WordPress Theme
• Lorelle's WordPress Tips and Techniques