A friendly and powerful open source CMS with an exceptionally strong foundation. With all custom fields, an easy-to-use jQuery-inspired API, and a powerful selector engine, ProcessWire will rise to any task.
RubyFrontier is a TextMate bundle implementing a Web site framework; it turns TextMate into a tool for writing and maintaining Web sites. Its architecture and philosophy are modelled after UserLand Frontier, but it is written in Ruby.
SkyBlueCanvas Lightweight CMS is Free Software! SkyBlueCanvas Lightweight CMS is an open source, free content management system written in php and built specifically for small web sites. T
Blosxom (pronounced "blossom") is a lightweight yet feature-packed weblog application designed from the ground up with simplicity, usability, and interoperability in mind.
CiviCRM is an open source and freely downloadable constituent relationship management solution. CiviCRM is web-based, open source, internationalized, and designed specifically to meet the needs of advocacy, non-profit and non-governmental groups.
CMS Made Simple helps experienced web developers and designers to create sites of power and beauty in a fraction of the normal time, avoiding hours of coding and allowing your clients to update their own sites with a minimum of fuss.