I'm finding the most simple CMS to use it to manage my simle website contents.
Most Simple CMS
My vote would go with Wordpress
Wordpress is great for this (i recommend it nearly every post i make lol) theirs a tonne of open source skins/plugins for it to get you started. Its optimized & has a tonne of seo'd features to help out with google & tis very easy to install and use. Some of my clients are very new to the internet & struggle to use sites but after 5-10min their running their sites with wordpress very easily.
wordpress ONLY because its great SEO compatibilities