Why do you need a domain name? This is a simple explanation why do you need a domain name. The domain name is converting the IP Address e.g. 123.456.789 to a domain name for example Piolo.com or Kikay.com for them to remember your website or blog or business site.
With your domain name, you can also create your own email address e.g. TheMan@Piolo.com or Fashion@Kikay.com. You can also create your own sub-domain e.g. http://blog.piolo.com, or http://sports.piolo.com or http://news.kikay.com or http://gossip.kikay.com, etc.