Free, popular, simple to use and easy to modify CMS script. Minimal requirements: PHP 5.2 +, 2 MB disk space and 5 free minutes to install! Doesn't need MySQL or any changes in Apache. Users value it for its great Google results, its very good performance, compliance with many standards HTML 5, CSS3, RWD (mobile) and its good forums support. Its other important qualities are: easy modification of HTML and PHP, WYSIWYG editor, no unnecessary options, mobile version and most importantly it's still evolving for over 10 years.