Cpanel is widely used by web hosts and has their own documentation. There is also a link to it at the bottom of each page in Cpanel.
Cpanel allows you to install many progams like Drupal and Joomla that maintain their own support sites. Click over to the 1-click install list for links to these sites.
We recommend Wordpress for blogging and even for many regular websites. It's easy to install from our control panel - just scroll down to the Softaculous section and look for the WordPress icon.
If you need inspiration or blog development help, Problogger is a great resource.
If you have a question about WordPress, Wordpress Answers is another great resource.