We have prepared to sets of tutorials for our cpanel users.
The first set covers managing your hosting account with cpanel, while the second set covers WHM for resellers.

Cpanel Tutorials

• Creating a POP email account
• Creating a default (catchall) email account
• Creating an email account in Outlook Express
• Creating an autoresponder
• Creating a subdomain
• Creating custom error pages
• Password protecting a directory
• Creating a MySQL database
• Managing a MySQL database in PHPMyAdmin
• Installing FrontPage extensions
• Using File Manager
• Using Index Manager
• Enabling Hotlink Protection
• Redirecting a URL
• Redirecting mail
• Changing your control panel password
• Creating an add-on domain
• Creating an FTP account
• Backing up your site
• Using WebMail
  

WHM Tutorials

• Managing your hosting packages
• Managing your hosting accounts
• Managing your bandwidth
• Managing your subdomains
• Managing your skeleton directory
• Managing your suspended accounts
• Managing your parked domains
• Managing your FrontPage Extensions
• Modifying account passwords
• Monitoring your server
• Troubleshooting email
• Setting up a Remote Access Key
• Changing your WHM theme