Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.

Brushd - Build An Online Creative Portfolio Effortlessly.

Anchor CMS - Free and lightweight blogging system

Cargo - Cargo Collective is a web publishing platform that creates and offers accessible tools online.

Textpattern - Textpattern is an elegant content management system that is free, open source software.

Crevado - Crevado makes it super-easy to create your online & mobile portfolio website.