SiteBox is a highly modular Web portal system
written in PHP that is very flexible and is easily
customized. It supports MySQL and PostgreSQL.
SiteBox administration is very flexible. The
administration tool can be installed in the
location of your choice, meaning that it can be
placed in a seperate secure domain. It is possible
to administer multiple SiteBox sites from one
administration page. Every functional part of the
SiteBox system is a module (news, side boxes,
etc.), which makes the development of new modules
easy. The layout of sites and their 'themes' may
be customized.