Mac's CMS is a flat file (XML and SQLite) AJAX content management system. It focuses mainly on the "Edit In Place" editing concept. It comes with a built-in blog with moderation support, user manager section, roles manager section, and SEO/SEF URLs.
A Magento order attribute extension that allows store owners to add custom fields to the checkout page.
A modest and easy-to-use editor with many useful features for HTML editing.