Starting a blog is a good idea as most are "ready made"
If you want a little more creative freedom, look at using a Content Management System. (CMS for short)
You will need webspace, and the ability to upload, but once you have that, it's incredibly easy to edit to suit your needs.
Probably the easiest ones to install and use are Joomla and Mambo. Joomla is based on Mambo, so they are very similar, although some features differ slightly.
Both are ideal for beginners, and once you have them installed, there are lots of skins available for free. Skins are just a way of changing the look of your site. Colour schemes etc are changed automatically when you install a skin.
If you are unsure if you could manage this kind of site, have a look here
http://help.mamboserver.com/index.php?option=com_content&task=view&id=39&Itemid=70
That is the installation documentation for Mambo. Have a read through it, and if you feel you could manage it, give it a go.