Expanse is yet another cool, home-brewed web application that fills a gap in the Content Management System market. It is marketed to artists, and small businesses who need to have control over their content without spending a fortune on an enterprise solution. It’s a tightly designed, standards compliant CMS that makes extensive use of JavaScript and Ajax in the admin tool to create a very intuitive user interface. It appears to do a few things well, rather than trying to do everything half-heartedly. Their demo gives you the chance to test drive its core feature set and get a sense for the quality of the interface. At $30 per site license, it could be a great option to use as a base for client sites, allowing a designer/developer to create a great skin for the application, and charge for customization and setup.