Scalar is a open source, web-based publishing software from the University of Southern California's Alliance for Networking Visual Culture that allows you to create networked, multi-media online publications.
A very easy way to make a website with good navigation. Optimized for blogs. You can install WordPress on a site you host yourself, or you can have WordPress host your site for free.
An extremely robust content management system (CMS) to install on a site that you host yourself. Drupal is widely used and is very customizable, but there is a steep learning curve.
