Textpattern CMS is a flexible, elegant and easy-to-use content management system. A demo is offered here for test driving.
Up to 3 demo sites are available: a production-grade Textpattern, an in-development Textpattern built from GitHub and sometimes a beta Textpattern when a new version is nearing completion.
Each demo is restored from scratch every 3 hours starting at midnight UTC: at 0000, 0300, 0600, 0900, 1200, 1500, 1800, and 2100 UTC everything gets automatically nuked and repaved. It's currently 0258 CET. Give yourself enough time to use the demo, especially if a restore is imminent and you want to have a good poke around.