Tags and tagclouds are all over the web nowadays. Almost every blog or website has it. Setting up a tagging system in Drupal is very easy. If you are using Drupal as a weblog, this might be a great feature for your website. Heck, it is a great feature even if you're not using Drupal as blog.
Here I will point out some things that should be done by yourself after you have installed Drupal. It's a basic Drupal site configuration - some things that I always do when I create new Drupal website.
Welcome, my Drupaler
Maybe you've heard about Drupal somewhere, maybe a friend told you about it, or maybe you just saw some cool website and found out it has been made with Drupal.
Drupal is CMS - Content Management System. It means you somehow "manage content" with it. So, what kind of content can you manage with Drupal? Any kind!